5,724 results match your criteria Lice


Parasites of the Shiny Cowbird, Molothrus bonariensis, and the Austral Blackbird, Curaeus curaeus, (Passeriformes: Icteridae) in Chile.

Rev Bras Parasitol Vet 2020 26;29(2):e021819. Epub 2020 Jun 26.

Laboratorio de Parásitos y Enfermedades de Fauna Silvestre, Facultad de Ciencias Veterinarias, Universidad de Concepción, Chillán, Chile.

Comparative studies of parasites in sympatric bird species have been generally scarce. Parasitic infection/transmission can be spread in a number of ways that suggests possible direct and indirect, horizontal transmission between avian hosts. In order to determine whether two sympatric icterids from Central and Southern Chile share their parasite fauna (ecto- and endoparasites), we examined parasites of 27 Shiny Cowbirds, Molothrus bonariensis, and 28 Austral Blackbirds, Curaeus curaeus, including individuals captured in the wild and carcasses. Read More

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http://dx.doi.org/10.1590/S1984-29612020022DOI Listing

"A cleaner break": Genetic divergence between geographic groups and sympatric phenotypes revealed in ballan wrasse ().

Ecol Evol 2020 Jun 5;10(12):6120-6135. Epub 2020 Jun 5.

Institute of Marine Research Bergen Norway.

Capture and long-distance translocation of cleaner fish to control lice infestations on marine salmonid farms has the potential to influence wild populations via overexploitation in source regions, and introgression in recipient regions. Knowledge of population genetic structure is therefore required. We studied the genetic structure of ballan wrasse, a phenotypically diverse and extensively used cleaner fish, from 18 locations in Norway and Sweden, and from Galicia, Spain, using 82 SNP markers. Read More

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http://dx.doi.org/10.1002/ece3.6404DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7319121PMC

L.: A Phytochemical and Pharmacological Overview.

Molecules 2020 Jun 24;25(12). Epub 2020 Jun 24.

Institute of Field and Vegetable Crops Novi Sad, Maksima Gorkog 30, 21000 Novi Sad, Serbia.

is a plant with high bioactive potential. It contains marrubiin, a labdane diterpene that is characteristic for this genus, as well as a complex mixture of phenolic compounds. According to numerous studies, acts as a good antioxidant agent, and due to this, it could potentially be useful in treatments of cancer, diabetes mellitus, and liver diseases. Read More

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http://dx.doi.org/10.3390/molecules25122898DOI Listing

Salmon lice survive the straight shooter: A commercial scale sea cage trial of laser delousing.

Prev Vet Med 2020 Jun 18;181:105063. Epub 2020 Jun 18.

Sustainable Aquaculture Laboratory - Temperate and Tropical (SALTT), School of BioSciences, University of Melbourne, Victoria 3010, Australia.

Ectoparasitic salmon louse (Lepeophtheirus salmonis) infestations are costly for Atlantic salmon (Salmo salar) farmers in Norway. As a result, there is a strong desire for solutions to prevent and control infestations, and new technologies are typically developed and commercialised rapidly, without rigorous validation. Here, we tested the efficacy of a new commercially available control measure-delousing by underwater lasers-using a replicated design at full commercial scale. Read More

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http://dx.doi.org/10.1016/j.prevetmed.2020.105063DOI Listing

Electroencephalography at the time of Covid-19 pandemic in Italy.

Neurol Sci 2020 Jun 26. Epub 2020 Jun 26.

Department of Human Neurosciencies, Sapienza University of Rome, Rome, Italy.

Objective: During the Covid-19 pandemic, government restrictions limited health care to urgent needs. Neurophysiology centers had to suddenly reschedule their activities, with a lack of specific recommendations about electroencephalography (EEG) execution. During the pandemic phase 1, we launched an online survey to understand the flaws and strengths of the EEG management in Italy at the time of Covid-19 pandemic. Read More

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http://dx.doi.org/10.1007/s10072-020-04546-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7316521PMC

First record of natural infection with Anaplasma marginale in sucking lice infesting the water buffalo (Bubalus bubalis) in Mexico.

Parasitol Res 2020 Jun 25. Epub 2020 Jun 25.

USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory and Veterinary Pest Genomics Center, Kerrville, TX, USA.

The water buffalo (Bubalus bubalis) is an Asian species of bovine which was introduced in Mexico in 1992, as an alternative for milk and meat production. However, little is known about its associated ectoparasites, in particular about their lice. As a part of a project to identify the diversity and prevalence of Anaplasma in cattle and water buffaloes in the state of Veracruz, Mexico, we visited a ranch in the downtown area in which 42 buffaloes were visually inspected for the presence of ectoparasites. Read More

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http://dx.doi.org/10.1007/s00436-020-06772-7DOI Listing
June 2020
2.327 Impact Factor

Sex interacts with age-dependent change in the abundance of lice-infesting Amur Falcons (Falco amurensis).

Parasitol Res 2020 Jun 18. Epub 2020 Jun 18.

Department of Biomathematics and Informatics, University of Veterinary Medicine, Budapest, Hungary.

Sex-biassed and age-biassed parasite infections are common in nature, including ectoparasites-vertebrate host systems. We investigated the effect of Amur Falcons' sex, age and body size on the abundance of their lice at a migratory stopover site, where the falcons' habitat use and behaviour are more homogeneous across sex and age categories than during the breeding season. We sampled Amur Falcons in Nagaland, India at major roosting sites in 2016. Read More

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http://dx.doi.org/10.1007/s00436-020-06753-wDOI Listing

A machine vision system for tracking population behavior of zooplankton in small-scale experiments: a case study on salmon lice ( Krøyer, 1838) copepodite population responses to different light stimuli.

Biol Open 2020 Jun 25;9(6). Epub 2020 Jun 25.

SINTEF Ocean, Environment and New Resources, Brattørkaia 17C, NO-7010 Trondheim, Norway.

To achieve efficient and preventive measures against salmon lice ( Krøyer, 1838) infestation, a better understanding of behavioral patterns of the planktonic life stages is key. To investigate light responses in copepodites, a non-intrusive experimental system was designed to measure behavioral responses in a 12.5-l volume using machine vision technology and methodology. Read More

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http://dx.doi.org/10.1242/bio.050724DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7328005PMC

Digital narrative medicine for the personalization of epilepsy care pathways.

Epilepsy Behav 2020 Jun 15;111:107143. Epub 2020 Jun 15.

Epilepsy Center, Department of Human Neurosciences, Sapienza University of Rome and Umberto 1° Hospital, Italy. Electronic address:

Among neurological conditions, epilepsy is the disorder best suited to a narrative approach. In epilepsy, the disease, i.e. Read More

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http://dx.doi.org/10.1016/j.yebeh.2020.107143DOI Listing

First evidence of the mutations associated with pyrethroid resistance in head lice (Phthiraptera: Pediculidae) from Honduras.

Parasit Vectors 2020 Jun 16;13(1):312. Epub 2020 Jun 16.

Centro de Investigaciones de Plagas e Insecticidas (UNIDEF-CONICET), Villa Martelli, Argentina.

Background: The human head louse, Pediculus humanus capitis, is a cosmopolitan blood-sucking ectoparasite affecting mostly schoolchildren in both developed and developing countries. In Honduras, chemical pediculicides are the first line of treatment, with permethrin as their main active ingredient. Despite the extended use of these products, there is currently no research investigating insecticide resistance in Honduran head lice. Read More

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http://dx.doi.org/10.1186/s13071-020-04183-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7298768PMC

Assessing the link between head lice infestation and selected cognitive-behavioral factors in a sample of Iranian female adolescents.

Heliyon 2020 May 15;6(5):e03959. Epub 2020 May 15.

School of Nursing of Miandoab City, Urmia University of Medical Sciences, Urmia, Iran.

Background: Head lice infestation is a serious health issue among adolescents in Iran. The primary purpose of the study was to determine the association of head lice infestation with cognitive-behavioral factors in female adolescents.

Methods: The study was cross-sectional, took place between September and October of 2017 in Sarab, East Azerbaijan province, Iran. Read More

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http://dx.doi.org/10.1016/j.heliyon.2020.e03959DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7266778PMC

Negative impacts of the sea lice prophylactic emamectin benzoate on the survival of hatchery released salmon smolts in rivers.

Aquat Toxicol 2020 Jul 23;224:105519. Epub 2020 May 23.

NORCE Norwegian Research Centre, Laboratory for Freshwater Ecology and Inland Fisheries (LFI), Nygårdsporten 112, 5008 Bergen, Norway.

Emamectin benzoate (EB) is a prophylactic pharmaceutical used to protect Atlantic salmon (Salmo salar) smolts migrating out of rivers and into the ocean against sea lice parasites. Randomized control trials comparing the marine survival of smolts treated with EB to a control group is used to calculate the fraction of marine mortality attributable to sea lice parasitism. However, it is assumed that there is no baseline difference in survival induced by the application of EB treatment. Read More

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http://dx.doi.org/10.1016/j.aquatox.2020.105519DOI Listing

Managing plague on prairie dog colonies: insecticides as ectoparasiticides.

J Vector Ecol 2020 Jun;45(1):82-88

U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, 80526, U.S.A.

Human health practitioners and wildlife biologists use insecticides to manage plague by suppressing fleas (Siphonaptera), but insecticides can also kill other ectoparasites. We investigated effects of deltamethrin and fipronil on ectoparasites from black-tailed prairie dogs (Cynomys ludovicianus, BTPDs). In late July, 2018, we treated three sites with 0. Read More

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http://dx.doi.org/10.1111/jvec.12375DOI Listing

A Case of (von Olfers, 1816) (Phthiraptera: Anoplura) Infestation in a Dog.

Turkiye Parazitol Derg 2020 Jun;44(2):118-121

Selçuk Üniversitesi Veteriner Fakültesi, Parazitoloji Anabilim Dalı, Konya, Türkiye.

This case report was prepared to give information about (von Olfers, 1816) detected on a 2-year-old male Rottweiler breed dog which was brought to a private veterinary clinic due to restlessness and itching. Lice were found especially on the head, neck and back regions of the dog in the examination for ectoparasites. Four female, 2 male and 9 nymph lice were collected from dog. Read More

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http://dx.doi.org/10.4274/tpd.galenos.2020.6640DOI Listing

So happy together: juvenile crabeater seal behavior improves lice transmission.

Parasitol Res 2020 Jul 23;119(7):2059-2065. Epub 2020 May 23.

Instituto de Biología de Organismos Marinos (IBIOMAR), Boulevard Brown 2915, U9120ACF, Puerto Madryn, Chubut, Argentina.

Lice from family Echinophthiriidae are of the few insects that have successfully colonized marine environment living as ectoparasites of pinnipeds, i.e., sea lions, seals, and the walrus. Read More

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http://dx.doi.org/10.1007/s00436-020-06704-5DOI Listing

Author Correction: Cumulative impact of anti-sea lice treatment (azamethiphos) on health status of Rainbow trout (Oncorhynchus mykiss, Walbaum 1792) in aquaculture.

Sci Rep 2020 May 20;10(1):8643. Epub 2020 May 20.

Aquaculture Health Laboratory, School of Health and Life Sciences, University of the West of Scotland, Paisley, PA1 2BE, Scotland, UK.

An amendment to this paper has been published and can be accessed via a link at the top of the paper. Read More

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http://dx.doi.org/10.1038/s41598-020-65512-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237656PMC

Who Bites Me? A Tentative Discriminative Key to Diagnose Hematophagous Ectoparasites Biting Using Clinical Manifestations.

Diagnostics (Basel) 2020 May 15;10(5). Epub 2020 May 15.

Parasitology-Mycology Department, Avicenne Hospital, AP-HP, 93000 Bobigny, France.

Arthropod blood feeders are vectors of several human pathogenic agents, including viruses (e.g., yellow fever, chikungunya, dengue fever), parasites (e. Read More

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http://dx.doi.org/10.3390/diagnostics10050308DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7277957PMC

Occurrence of Caligus asperimanus Pearse, 1951 (Copepoda: Caligidae) parasitic Lutjanus spp. (Perciformes: Lutjanidae) in the western South Atlantic.

Rev Bras Parasitol Vet 2020 18;29(2):e018219. Epub 2020 May 18.

Laboratório de Parasitologia Animal, Centro de Pesquisa em Biologia, Universidade Castelo Branco-RJ, Realengo, RJ, Brasil.

Sea lice are widespread copepods in marine teleost around the world. In this paper the first record of Caligus asperimanus Pearse, 1951 in the Western South Atlantic is documented parasitizing Lutjanus jocu and Lutjanus vivanus caught from coastal zones of Espírito Santo and Rio de Janeiro State, respectively. Read More

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http://dx.doi.org/10.1590/s1984-29612020001DOI Listing

Estimating sea lice infestation pressure on salmon farms: Comparing different methods using multivariate state-space models.

Epidemics 2020 Jun 11;31:100394. Epub 2020 May 11.

Centre for Veterinary Epidemiological Research, Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, C1A 4P3, Canada.

Sea lice are ectoparasites of salmonids, and are considered to be one of the main threats to Atlantic salmon farming. Sea lice infestation on a farm is usually initiated by attachment of the free-living copepodid stage derived from the surrounding water, frequently originating from adult lice on the same farm or from neighboring salmonid farms, referred to as internal and external sources, respectively. Various approaches have been proposed to quantify sea lice infestation pressure on farms to improve the management of this pest. Read More

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http://dx.doi.org/10.1016/j.epidem.2020.100394DOI Listing

Rainbow trout Oncorhynchus mykiss skin responses to salmon louse Lepeophtheirus salmonis: From copepodid to adult stage.

Fish Shellfish Immunol 2020 Aug 15;103:200-210. Epub 2020 May 15.

SLRC - Sea Lice Research Centre, Department of Biological Sciences, University of Bergen, Thormøhlensgt. 55, Pb. 7803, 5020, Bergen, Norway. Electronic address:

The marine crustacean Lepeophtheirus salmonis (salmon louse) is a common ectoparasite of wild and farmed salmonids. The parasite has a complex ontogeny comprising eight instars. The planktonic copepodid stage settles on host skin and pass through five instars to reach the adult stage. Read More

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http://dx.doi.org/10.1016/j.fsi.2020.05.014DOI Listing

Integrative taxonomy of Pseudolepeophtheirus longicauda (Crustacea: Copepoda: Caligidae) parasitic on Platichthys stellatus (Actinopterygii: Pleuronectidae).

Parasitol Int 2020 May 13;78:102135. Epub 2020 May 13.

Department of Biological Sciences, Faculty of Science, Hokkaido University, N10 W8 Kita-ku, Sapporo 060-0810, Japan. Electronic address:

Based on specimens from the gill cavities of one Platichthys stellatus individual collected in the Sea of Japan, we investigated the taxonomic status of the enigmatic caligid genus Pseudolepeophtheirus and its type species, Pseudolepeophtheirus longicauda. In a maximum likelihood (ML) tree based on 18S rRNA gene sequences, the sequence from our sample was nested in a well-supported Lepeophtheirus clade, along with the type species, confirming that Pseudolepeophtheirus should be considered a junior synonym of Lepeophtheirus; our morphological data support this synonymy. Although a previous study had synonymized Pseudolepeophtheirus longicauda with Lepeophtheirus parvicruris, we found that the former differs morphologically from the latter in having a short leg-4 exopod, with the articulation between the first and second segments not evident (the shape of the posterior striated membrane on the leg-2 intercoxal sclerite also differs between two species), and detected slight differences in 18S rRNA sequences between two taxa. Read More

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http://dx.doi.org/10.1016/j.parint.2020.102135DOI Listing

Salmon immunological defence and interplay with the modulatory capabilities of its ectoparasite Lepeophtheirus salmonis.

Parasite Immunol 2020 May 13:e12731. Epub 2020 May 13.

Department of Pathology and Microbiology, Atlantic Veterinary College-UPEI, Charlottetown, PEI, Canada.

The salmon louse Lepeophtheirus salmonis (Lsal) is an ectoparasitic copepod that exerts immunomodulatory and physiological effects on its host Atlantic salmon. Over 30 years of research on louse biology, control, host responses and the host-parasite relationship has provided a plethora of information on the intricacies of host resistance and parasite adaptation. Atlantic salmon exhibit temporal and spatial impairment of the immune system and wound healing ability during infection. Read More

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http://dx.doi.org/10.1111/pim.12731DOI Listing

Data on ectoparasites infestation on small mammals from different habitats in east-coast Peninsular Malaysia.

Data Brief 2020 Jun 28;30:105621. Epub 2020 Apr 28.

Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.

This data article presents on the ectoparasites infestation on small mammals in Peninsular Malaysia. The dataset on ectoparasites infestation is important because it raises a major medical concern regarding the spread of potentially zoonotic disease from wildlife to human. Tick and chigger are the primary ectoparasites as reservoirs of vector-borne diseases found on small mammals in Malaysia. Read More

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http://dx.doi.org/10.1016/j.dib.2020.105621DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7210395PMC

-Like Endosymbiont of Is Required for Physiological Processes During Ontogeny.

Front Microbiol 2020 22;11:493. Epub 2020 Apr 22.

Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.

Obligatory hematophagous arthropods such as lice, bugs, flies, and ticks harbor bacterial endosymbionts that are expected to complement missing essential nutrients in their diet. Genomic and some experimental evidence support this expectation. Hard ticks (Acari: Ixodidae) are associated with several lineages of bacterial symbionts, and very few were experimentally shown to be essential to some aspects of tick's fitness. Read More

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http://dx.doi.org/10.3389/fmicb.2020.00493DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7188774PMC

The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment.

Environ Pollut 2020 Sep 3;264:114725. Epub 2020 May 3.

Institute of Marine Research/ Havforskningsinstituttet, PO Box 1870 Nordnes, 5817, Bergen, Norway.

Anti-sea lice pesticides, used in the salmonid aquaculture industry, are a growing environmental concern due to their potential to adversely affect non-target crustaceans. Azamethiphos and deltamethrin are two bath treatment pesticides used on salmon farms in Norway, however, limited information is available on their impact on European lobster (Homarus gammarus) larvae in the Norwegian marine environment. Here, we firstly report the lethal (LC) and effective (EC) concentrations of azamethiphos and deltamethrin for stage I and stage II larvae, following 1-h exposures. Read More

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http://dx.doi.org/10.1016/j.envpol.2020.114725DOI Listing
September 2020

Physical illnesses associated with childhood homelessness: a literature review.

Ir J Med Sci 2020 May 8. Epub 2020 May 8.

Graduate Entry Medical School (GEMS), University of Limerick, Limerick, Ireland.

Background: Childhood homelessness is a growing concern in Ireland [1] creating a paediatric subpopulation at increased risk of physical illnesses, many with life-long consequences [2].

Aim: Our aim was to identify and categorize the physical morbidities prevalent in homeless children.

Methods: A review of the English-language literature on physical morbidities affecting homeless children (defined as ≤ 18 years of age) published from 1999 to 2019 was conducted. Read More

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http://dx.doi.org/10.1007/s11845-020-02233-3DOI Listing

Efficacy and safety of a combination regimen of phenothrin and ivermectin lotion in patients with head lice in Okinawa, Japan.

J Dermatol 2020 Jul 7;47(7):720-727. Epub 2020 May 7.

National Sanatorium Tamazenshoen, Higashimurayama, Japan.

In Japan, pyrethroid-resistant head lice have been increasing; however, only 0.4% phenothrin, a pyrethroid drug, is available as an over the counter formulation. In recent years, Sumithrin Lotion containing 5% phenothrin (PHT) was approved for scabies. Read More

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http://dx.doi.org/10.1111/1346-8138.15348DOI Listing

Host gill attachment causes blood-feeding by the salmon louse (Lepeophtheirus salmonis) chalimus larvae and alters parasite development and transcriptome.

Parasit Vectors 2020 May 6;13(1):225. Epub 2020 May 6.

Department of Biological Sciences and Sea Lice Research Centre (SLRC), University of Bergen, Bergen, Norway.

Background: Blood-feeding is a common strategy among parasitizing arthropods, including the ectoparasitic salmon louse (Lepeophtheirus salmonis), feeding off its salmon host's skin and blood. Blood is rich in nutrients, among these iron and heme. These are essential molecules for the louse, yet their oxidative properties render them toxic to cells if not handled appropriately. Read More

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http://dx.doi.org/10.1186/s13071-020-04096-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7201535PMC

Low occurrence of Bartonella in synanthropic mammals and associated ectoparasites in peri-urban areas from Central-Western and Southern Brazil.

Acta Trop 2020 Jul 1;207:105513. Epub 2020 May 1.

Department of Veterinary Pathology, Faculty of Agrarian and Veterinary Sciences (FCAV/UNESP), Jaboticabal, São Paulo, Brazil. Electronic address:

Worldwide, Bartonella species are known to infect a wide range of mammalian and arthropod hosts, including humans. The current study aimed to investigate the prevalence of Bartonella spp. in synanthropic mammals captured in peri-urban areas from Central-Western and Southern Brazil and their ectoparasites. Read More

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http://dx.doi.org/10.1016/j.actatropica.2020.105513DOI Listing

Molecular Evidence of Bacteria in Clothes Lice Collected from Homeless People Living in Shelters in Marseille.

Vector Borne Zoonotic Dis 2020 May 4. Epub 2020 May 4.

Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France.

We sought to evidence the presence of emerging bacterial pathogens in clothes lice collected from sheltered homeless individuals from Marseille, France. During the 2013-2018 period, a total of 507 lice were collected from 37 individuals and were processed for molecular analysis. We reported a low prevalence of DNA carriage (1. Read More

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http://dx.doi.org/10.1089/vbz.2019.2603DOI Listing

Essential Oils as a Potential Treatment Option for Pediculosis.

Planta Med 2020 Jun 4;86(9):619-630. Epub 2020 May 4.

Parasitology-Mycology Department, Avicenne Hospital, AP-HP, Bobigny, France.

Pediculosis is a prevalent ectoparasite infestation caused by lice. The head louse () and body louse () are obligatory parasites whose only known hosts are humans. Pediculosis is probably the most common ectoparasitic infestation, affecting up to 80% of the population in several countries, and particularly prevalent in the infant population worldwide. Read More

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http://dx.doi.org/10.1055/a-1161-9189DOI Listing

Pubic Lice in Facial Hair.

Dermatol Pract Concept 2020 20;10(2):e2020042. Epub 2020 Apr 20.

Amanza Health Care, Nahas Skin Clinic, Perinthalmanna, Kerala, India.

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http://dx.doi.org/10.5826/dpc.1002a42DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7190558PMC

What's eating you? human body lice (Pediculus humanus corporis).

Cutis 2020 03;105(3):118-120

Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston, USA.

Compared to head and pubic lice, body lice (Pediculus humanus corporis) carry increased morbidity in the form of greater body surface area involvement, possible infectious disease transmission, and the potential for secondary iron-deficiency anemia. They thrive in high-density urban populations in which hygiene is poor, such as among the homeless. Treatment includes washing of affected individuals, their possessions, and treatment with topical insecticides. Read More

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Development of MALDI-TOF mass spectrometry for the identification of lice isolated from farm animals.

Parasite 2020 30;27:28. Epub 2020 Apr 30.

Aix Marseille Univ., IRD, AP-HM, SSA, VITROME, 13005 Marseille, France - IHU-Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005 Marseille, France.

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is now routinely used for the rapid identification of microorganisms isolated from clinical samples and has been recently successfully applied to the identification of arthropods. In the present study, this proteomics tool was used to identify lice collected from livestock and poultry in Algeria. The MALDI-TOF MS spectra of 408 adult specimens were measured for 14 species, including Bovicola bovis, B. Read More

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http://dx.doi.org/10.1051/parasite/2020026DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7191974PMC

Seven Challenges for the Dehumanization Hypothesis.

Authors:
Harriet Over

Perspect Psychol Sci 2020 Apr 29:1745691620902133. Epub 2020 Apr 29.

Department of Psychology, University of York.

Propagandists often compare members of stigmatized out-groups to nonhuman entities such as rats, lice, and snakes. Drawing on these horrifying descriptions, the dehumanization hypothesis proposes that out-group members are viewed as less than human and that being viewed as less than human renders them vulnerable to harm. I offer seven challenges to the dehumanization hypothesis. Read More

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http://dx.doi.org/10.1177/1745691620902133DOI Listing

Where art thou louse? A snapshot of attachment location preferences in salmon lice on Atlantic salmon hosts in sea cages.

J Fish Dis 2020 Jun 22;43(6):697-706. Epub 2020 Apr 22.

Sustainable Aquaculture Laboratory - Temperate and Tropical (SALTT), School of BioSciences, University of Melbourne, Parkville, Victoria, Australia.

Problematic sea lice infestations on farmed Atlantic salmon (Salmo salar) have motivated extensive research and development into new methods to prevent, monitor and control sea lice. Most of these technologies require detailed information on the behaviour, spatial distribution and demography of lice on host fish. This study investigated how salmon lice (Lepeophtheirus salmonis) infestation density varies across the host's surface under sea cage farming conditions. Read More

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http://dx.doi.org/10.1111/jfd.13167DOI Listing

Ectoparasites of small mammals in a fragmented area of the southern Amazonia: interaction networks and correlations with seasonality and host sex.

Exp Appl Acarol 2020 May 16;81(1):117-134. Epub 2020 Apr 16.

Instituto de Biociências, Universidade Federal de Mato Grosso, Av. Fernando Corrêa da Costa, nº2367, Bairro Boa Esperança, Cuiabá, MT, Brasil.

The present work aimed to analyze the ectoparasite-host interaction network and possible differences of this interaction related to two seasonal periods and host sex. During November 2016 and July 2017, non-flying small mammals were captured in 17 forest fragments located in the southern portion of the Amazon biome. We captured 96 individuals belonging to 10 host species that were parasitized with a total of 3668 ectoparasites. Read More

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http://dx.doi.org/10.1007/s10493-020-00491-5DOI Listing

Interleukin-1 Ligands and Receptors in Lumpfish ( L.): Molecular Characterization, Phylogeny, Gene Expression, and Transcriptome Analyses.

Front Immunol 2020 2;11:502. Epub 2020 Apr 2.

Department of Biological Sciences, Bergen High-Technology Centre, University of Bergen, Bergen, Norway.

The interleukin (IL)-1 family play a fundamental role as immune system modulators. Our previous transcriptome-analyses of leukocytes from lumpfish ( L.) showed that IL-1β was among the most highly upregulated genes following bacterial exposure. Read More

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http://dx.doi.org/10.3389/fimmu.2020.00502DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7144542PMC

National and Provincial Prevalence of Pediculus humanus capitis among Urban Students in Iran from 2014 to 2018.

J Res Health Sci 2019 Sep 8;19(4):e00459. Epub 2019 Sep 8.

Health Office, Ministry of Education, Tehran, Iran.

Background: Pediculosis capitis is one of the most common contagious diseases in overcrowded places, especially in schools. We aimed to determine the overall and seasonal prevalence of Pediculosis capitis (head lice infestation) among Iranian students.

Study Design: A repeated cross-sectional study. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7183565PMC
September 2019

Itching eyes after itching around the head.

GMS Ophthalmol Cases 2020 27;10:Doc09. Epub 2020 Feb 27.

Complejo Hospitalario de Navarra, Dermatology, Pamplona, Navarra, Spain.

To report the occurrence and management of an eyelashes infestation by Phthirus pubis. A 27-year-old female presented with itching in her right eye and head after she had been traveling in southern Italy five days earlier. Visual acuity (VA) was 20/20 in both eyes. Read More

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http://dx.doi.org/10.3205/oc000136DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7113612PMC
February 2020

Molecular investigation and genetic diversity of Pediculus and Pthirus lice in France.

Parasit Vectors 2020 Apr 7;13(1):177. Epub 2020 Apr 7.

Department of Parasitology-Mycology, AP-HP, Hôpital Avicenne, Bobigny, France.

Background: Humans are parasitized by three types of lice: body, head and pubic lice. As their common names imply, each type colonizes a specific region of the body. The body louse is the only recognized disease vector. Read More

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http://dx.doi.org/10.1186/s13071-020-04036-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7140345PMC

Effects of laboratory salmon louse infection on osmoregulation, growth and survival in Atlantic salmon.

Conserv Physiol 2020 26;8(1):coaa023. Epub 2020 Mar 26.

Reproduction and Developmental Biology, Institute of Marine Research (IMR), PO Box 1870, Nordnes, 5817 Bergen, Norway.

Anadromous Atlantic salmon () rely on long ocean migrations to build energy stores for maturation and spawning. In seawater, wild Atlantic salmon are threatened by high salmon lice () infestation levels resulting from intensive salmonid sea-cage aquaculture. Salmon lice infection can cause a stress response and an osmotic imbalance in the host. Read More

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http://dx.doi.org/10.1093/conphys/coaa023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7098368PMC

Skeletal deformities in wild and farmed cleaner fish species used in Atlantic salmon Salmo salar aquaculture.

J Fish Biol 2020 Apr 3. Epub 2020 Apr 3.

Matre Research Station, Institute of Marine Research, Matredal, Norway.

As a first attempt to assess bone health in cleaner fish production, wild and cultured ballan wrasse Labrus bergylta and lumpfish Cyclopterus lumpus were examined by radiology. In C. lumpus, wild fish (57%) had more vertebra deformities (≥1 deformed vertebrae) than cultured fish (2-16%). Read More

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http://dx.doi.org/10.1111/jfb.14337DOI Listing

Emergence of a New [NNN] Pincer Ligand via Si-H-Bond Activation and b-Hydride Abstraction at Tetravalent Cerium.

Chemistry 2020 Apr 2. Epub 2020 Apr 2.

Universität Tübingen, Institut für Anorganische Chemie, Auf der Morgenstelle 18, 72076, Tübingen, GERMANY.

The  cerium(IV) pyrazolate complexes [Ce(Me 2 pz) 4 ] 2  and [Ce(Me 2 pz) 4 (thf)] initiate  b -hydride abstraction of the bis(dimethylsilyl)amido moiety, to afford heteroleptic cerium(IV) species containing a dimethylpyrazolyl-substituted silylamido ligand, namely [Ce(Me 2 pz) 3 (bpsa)] (bpsa = bis((3,5-dimethylpyrazol-1-yl)dimethylsilyl)amido)), along with other cerium(III) species. Remarkably, the nucleophilic attack of the pyrazolyl at the silicon atom and concomitant Si-H-bond cleavage is restricted to the tetravalent cerium oxidation state and appears to proceed via the formation of a transient cerium(IV) hydride, which engages in immediate redox chemistry. When [Ce(Me 2 pz) 4 ] 2  is treated with [Li{N(SiMe 3 ) 2 }], that is, in the absence of the SiH functionality, any redox chemistry did not occur. Read More

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http://dx.doi.org/10.1002/chem.202000625DOI Listing

Mitochondrial genomes of feather lice are highly fragmented, indicating repeated evolution of minicircle-type genomes in parasitic lice.

PeerJ 2020 23;8:e8759. Epub 2020 Mar 23.

Department of Entomology, Purdue University, West Lafayette, IN, United States of America.

Most animals have a conserved mitochondrial genome structure composed of a single chromosome. However, some organisms have their mitochondrial genes separated on several smaller circular or linear chromosomes. Highly fragmented circular chromosomes ("minicircles") are especially prevalent in parasitic lice (Insecta: Phthiraptera), with 16 species known to have between nine and 20 mitochondrial minicircles per genome. Read More

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http://dx.doi.org/10.7717/peerj.8759DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7098387PMC

Review of Chinese species of the Oxylipeurus-complex (Phthiraptera: Philopteridae), with descriptions of two new genera and five new species.

Zootaxa 2020 Feb 20;4742(2):zootaxa.4742.2.1. Epub 2020 Feb 20.

Guangdong Key Laboratory of Animal Conservation and Resource Utilisation and Guangdong Public Laboratory of Wild Animal Conservation and Utilisation, Guangdong Institute of Applied Biological Resources, 105 Xingang West Road, Haizhu District, Guangzhou, 510260, Guangdong, China..

Chewing lice of the Oxylipeurus-complex known from China are described and illustrated. The genera Megalipeurus Kéler, 1958 and Reticulipeurus Kéler, 1958 are considered valid, resurrected from synonymy and redescribed. Two new genera are described: Cataphractomimus new genus and Sinolipeurus new genus, which are proposed for species that do not fit into any previously described genus within the Oxylipeurus-complex. Read More

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http://dx.doi.org/10.11646/zootaxa.4742.2.1DOI Listing
February 2020

Revision of Hypoxys Amyot amp; Serville, 1843 stat. rest. (Heteroptera Pentatomidae).

Zootaxa 2020 Feb 21;4742(3):zootaxa.4742.3.1. Epub 2020 Feb 21.

Universidade Federal do Pará, Instituto de Ciências Biológicas, Av. Augusto Correa #1 66075-110, Belém, Pará, Brazil..

Hypoxys is one of four subgenera of Edessa (Fabricius, 1787) together with Aceratodes (De Geer, 1773), Dorypleura (Lepeletier Serville, 1825) and Edessa (Fabricius, 1787). This taxon has a very confusing taxonomy due to incorrect use of the names available, imprecise descriptions, and large number of very similar species. To illustrate the confusion, Hypoxys potentially includes a large number of species of Edessa, but actually contains only the type species, according to the most recent catalogue. Read More

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http://dx.doi.org/10.11646/zootaxa.4742.3.1DOI Listing
February 2020

Neotropical jumping plant-lice (Hemiptera, Psylloidea) associated with plants of the tribe Detarieae (Leguminosae, Detarioideae).

Zootaxa 2020 Feb 17;4733(1):zootaxa.4733.1.1. Epub 2020 Feb 17.

Naturhistorisches Museum, Augustinergasse 2, 4001 Basel, Switzerland..

The Detarieae, a small tribe of tropical arborescent Leguminosae, has been reported as host of two species of jumping plant-lice: the Neotropical Macrocorsa beeryi (Caldwell) on Hymenaea courbaril and the Afrotropical Retroacizzia mopanei (Pettey) on Colophospermum mopane. Here we add from Brazil 18 new species of Colophorina, Jataiba gen. nov. Read More

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http://dx.doi.org/10.11646/zootaxa.4733.1.1DOI Listing
February 2020

Forest edges affect ectoparasite infestation patterns of small mammalian hosts in fragmented forests in Madagascar.

Int J Parasitol 2020 Apr 26;50(4):299-313. Epub 2020 Mar 26.

Institute for Parasitology, Centre for Infection Medicine, University of Veterinary Medicine Hannover, Buenteweg 17, 30559 Hanover, Germany. Electronic address:

Habitat loss and fragmentation drive the worldwide depletion of biodiversity. Although it is known that anthropogenic disturbances severely affect host and ecosystem integrity, effects on parasites are largely understudied. This study aims to investigate if and how habitat fragmentation affects the composition of ectoparasite communities on small mammalian hosts in two networks of dry deciduous forest fragments in northwestern Madagascar. Read More

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http://dx.doi.org/10.1016/j.ijpara.2020.01.008DOI Listing