909 results match your criteria Boutonneuse Fever


Spotted fever rickettsioses causing myocarditis and ARDS: a case from Sri Lanka.

BMC Infect Dis 2018 Dec 29;18(1):705. Epub 2018 Dec 29.

Department of General Medicine, General Hospital (Teaching), Kandy, Sri Lanka.

Background: Spotted fever group of rickettsial infections are emerging in Sri Lanka. We describe a patient with rapidly progressing ARDS and myocarditis secondary to spotted fever caused by Rickettsia conorii. ARDS and myocarditis are rare complications of Rickettsia conorii infections and only a few cases are reported to date. Read More

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http://dx.doi.org/10.1186/s12879-018-3631-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6311067PMC
December 2018
5 Reads

Ocular manifestations of in South India.

Indian J Ophthalmol 2018 Dec;66(12):1840-1844

Resident, Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Salem, Tamil Nadu, India.

Purpose: Among the major groups of rickettsiosis, the commonly reported diseases in India are: (a) Typhus group induced-scrub typhus, murine flea-borne typhus; (b) Spotted fever group induced-Indian tick typhus; and (c) Q fever. Though many scrub typhus outbreaks have been reported from India, only one outbreak of spotted fever-serologically proven Indian tick typhus (Rickettsia conorii)-has been reported. We report for the first time ocular manifestations of serologically proven R. Read More

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http://dx.doi.org/10.4103/ijo.IJO_420_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6256869PMC
December 2018
10 Reads

Tick- and flea-borne rickettsioses in Tizi-Ouzou, Algeria: Implications for travel medicine.

Travel Med Infect Dis 2018 Nov - Dec;26:51-57. Epub 2018 Nov 9.

Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, IHU-Méditerranée Infection, Marseille, France. Electronic address:

Background: In Algeria, Mediterranean spotted fever (MSF), caused by Rickettsia conorii conorii and transmitted by Rhipicephalus sanguineus, is endemic. However, the documentation of cases is rare due to a lack of laboratory facilities. Our aim was to screen for rickettsioses in patients with fever, rash and a possible inoculation eschar. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S14778939183040
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http://dx.doi.org/10.1016/j.tmaid.2018.11.005DOI Listing
January 2019
14 Reads

Mediterranean spotted fever rickettsiosis in Italy, 2001-2015: Spatio-temporal distribution based on hospitalization records.

Ticks Tick Borne Dis 2019 01 3;10(1):43-50. Epub 2018 Sep 3.

Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.

The Mediterranean spotted fever (MSF) rickettsiosis is the predominant rickettsial disease among the spotted fever group (SFG) rickettsiae in the Mediterranean countries and North Africa. Its causative agent is Rickettsia conorii, although, SFG rickettsiosis - cases due to Rickettsia monacensis, Rickettsia massiliae and Rickettsia aeschlimannii were also described. A retrospective study based on hospital discharge records with a diagnosis of SFG rickettsiosis was carried out to describe the spatial pattern, the trend of the disease, and the epidemiological characteristics of persons hospitalized in the period 2001-2015. Read More

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http://dx.doi.org/10.1016/j.ttbdis.2018.09.001DOI Listing
January 2019
1 Read

[A complicated clinical course of tick-borne rickettsiosis after safari in South Africa].

Dtsch Med Wochenschr 2018 08 30;143(15):1116-1119. Epub 2018 Jul 30.

IV. Medizinische Klinik und Poliklinik der LMU, München.

History: A healthy 41 year old man was bitten by a tick while on safari in the Kruger National Park in South Africa. He developed severe fever and malaise 5 days later. A characteristic red skin sore with a dark centre and surrounding erythema (eschar, tache noir) developed at the site of the tick bite. Read More

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http://dx.doi.org/10.1055/a-0622-7606DOI Listing
August 2018
7 Reads

[Haemophagocytic syndrome secondary to Mediterranean spotted fever].

Ann Dermatol Venereol 2018 Aug - Sep;145(8-9):516-520. Epub 2018 Jul 10.

Département de dermatologie, CHU St-Éloi, 80, avenue Augustin-Fliche, 34090 Montpellier, France.

Introduction: Haemophagocytic syndrome (HS) is a rare disease with a severe prognosis that is defined by clinical, laboratory and histopathological criteria. Infections represent the classical cause of HS. HS secondary to Mediterranean spotted fever (MSF) is rare with only a few cases being reported in the literature. Read More

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http://dx.doi.org/10.1016/j.annder.2017.10.017DOI Listing
July 2018
9 Reads

Mediterranean Spotted Fever in Children: Study of a Portuguese Endemic Region.

Acta Med Port 2018 Apr 30;31(4):196-200. Epub 2018 Apr 30.

Pediatric Department. Centro Hospitalar de Trás-os-Montes e Alto Douro. Vila Real, Portugal.

Introduction: Mediterranean spotted fever is an infectious disease included in the human rickettsiosis group, with its main distribution in the Mediterranean and South European countries. It is an endemic disease in Portugal, with dogs acting as the main domestic reservoir. Children are a particularly vulnerable group due to their close contact with household animals and by frequently playing outdoors. Read More

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http://dx.doi.org/10.20344/amp.9713DOI Listing
April 2018
9 Reads

Rare presentation of rickettsial infection as purpura fulminans: a case report.

J Med Case Rep 2018 May 26;12(1):145. Epub 2018 May 26.

Department of Medicine, University of Peradeniya, Peradeniya, Sri Lanka.

Background: Purpura fulminans is an acute life-threatening disorder characterized by intravascular thrombosis and hemorrhagic infarction of the skin complicated with disseminated intravascular coagulation. It is commonly seen in acute infections following meningococcal and streptococcal infections. Few cases of purpura fulminans following rickettsial infections have been described in the literature. Read More

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http://dx.doi.org/10.1186/s13256-018-1672-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5970498PMC
May 2018
3 Reads

Ocular manifestations of rickettsia in children: common but frequently overlooked.

BMJ Case Rep 2018 May 18;2018. Epub 2018 May 18.

Ophthalmology Department, Centro Hospitalar Tondela-Viseu, Viseu, Portugal.

We review two cases of ocular manifestations of infection in children. A girl who presented unilateral visual loss with focal retinitis and macular oedema and a boy with unilateral central scotoma and bilateral anterior uveitis. Progressive functional and anatomic recovery was observed after oral antibiotics and steroids were initiated. Read More

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http://dx.doi.org/10.1136/bcr-2017-222809DOI Listing
May 2018
4 Reads

Prophylaxis in case of tick bite in Provence-Alpes-Côte d'Azur.

Authors:
P Del Giudice

Arch Pediatr 2018 05 11;25(4):302. Epub 2018 Apr 11.

Unité d'infectiologie et dermatologie, centre hospitalier de Fréjus-Saint-Raphaël, 240, avenue Saint-Lambert, 83600 Fréjus, France. Electronic address:

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http://dx.doi.org/10.1016/j.arcped.2018.03.008DOI Listing
May 2018
2 Reads

Under-diagnosis of rickettsial disease in clinical practice: A systematic review.

Travel Med Infect Dis 2018 Nov - Dec;26:7-15. Epub 2018 Mar 2.

Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Division of Internal Medicine, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, The Netherlands. Electronic address:

Background: Rickettsial diseases present as acute febrile illnesses, sometimes with inoculation eschars.

Methods: We performed a systematic review of studies published between 1997 and 2017 to assess the underestimation of non-eschar rickettsial disease (NERD) relative to eschar rickettsial disease (ERD), as a cause of acute fever in patients with rickettsial diseases that commonly present with eschar(s): scrub typhus (ST), Mediterranean spotted fever (MSF), and African tick-bite fever. We compared ERD/NERD ratios according to study design: 'complete approach' studies, with testing performed in all patients with 'unspecified febrile illness'; versus 'clinical judgement' studies, with testing performed if patients presented with specific symptoms. Read More

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http://dx.doi.org/10.1016/j.tmaid.2018.02.006DOI Listing
January 2019
7 Reads

Clinically-diagnosed Mediterranean Spotted Fever in Malta.

Travel Med Infect Dis 2018 Nov - Dec;26:16-24. Epub 2018 Feb 17.

Department of Paediatrics, Mater Dei Hospital, Tal-Qroqq, Msida, MSD 2090, Malta.

Background: Mediterranean Spotted Fever (MSF) is a tick-borne zoonosis caused by Rickettsia conorii which is endemic in Malta, an island in the South Mediterranean that is a popular tourist destination. Diagnosis is frequently based on clinical manifestations as laboratory results are often limited to a retrospective diagnosis. We describe the clinical presentation, diagnosis and treatment of children <16 years who presented with MSF from 2011 to 2016. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S14778939183001
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http://dx.doi.org/10.1016/j.tmaid.2018.02.005DOI Listing
January 2019
7 Reads

Tache Noire in a Patient with Acute Q Fever.

Med Princ Pract 2018 3;27(1):92-94. Epub 2018 Jan 3.

Objective: To describe a rare case of acute Q fever with tache noire.

Clinical Presentation And Intervention: A 51-year-old man experienced acute Q fever showing tache noire, generally considered a pathognomonic sign of Mediterranean spotted fever (MSF) and MSF-like illness, but not a clinical feature of Q fever. The patient was treated with doxycycline 100 mg every 12 h. Read More

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http://dx.doi.org/10.1159/000486573DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5968302PMC
October 2018
9 Reads

[Symmetrical peripheral gangrene: 4 cases].

Ann Dermatol Venereol 2018 Feb 21;145(2):95-99. Epub 2017 Nov 21.

Service des maladies infectieuses, université de Sfax, CHU Hédi Chaker, 3029 Sfax, Tunisie.

Background: Symmetric peripheral gangrene (SPG) is a symmetrical distal ischemic lesion on at least 2 or more extremities in the absence of proximal arterial obstruction and vasculitis. It is a rare and severe clinical entity. The aim of this study was to describe clinical symptoms, etiological agents and the management of SPG through a series of 4 cases. Read More

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http://dx.doi.org/10.1016/j.annder.2017.09.592DOI Listing
February 2018
6 Reads

First detection of Rickettsia conorii ssp. caspia in Rhipicephalus sanguineus in Zambia.

Parasitol Res 2017 Nov 7;116(11):3249-3251. Epub 2017 Oct 7.

Bundeswehr Institute of Microbiology, Neuherbergstrasse 11, 80937, Munich, Germany.

Ticks are important vectors for Rickettsia spp. of the spotted fever group all around the world. Rickettsia conorii is the etiological agent of boutonneuse fever in the Mediterranean region and Africa. Read More

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http://dx.doi.org/10.1007/s00436-017-5639-zDOI Listing
November 2017
30 Reads

Fibroblast growth factor receptor-1 mediates internalization of pathogenic spotted fever rickettsiae into host endothelium.

PLoS One 2017 14;12(8):e0183181. Epub 2017 Aug 14.

Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America.

Rickettsial infections continue to cause serious morbidity and mortality in severe human cases around the world. Host cell adhesion and invasion is an essential requisite for intracellular growth, replication, and subsequent dissemination of pathogenic rickettsiae. Heparan sulfate proteoglycans [HSPGs] facilitate the interactions between fibroblast growth factor(s) and their tyrosine kinase receptors resulting in receptor dimerization/activation and have been implicated in bacterial adhesion to target host cells. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0183181PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5555671PMC
October 2017
16 Reads

[Rickettsiosis associated with cerebral infarction: a new case study].

Pan Afr Med J 2017 20;26:80. Epub 2017 Feb 20.

Service de Neurlogie, Hopital Militaire Moulay Ismail, Meknès, Maroc.

Mediterranean spotted fever (MSF) is a rickettsiosis of the spotted fever group caused by rickettsia conorii. This zoonosis is benign but it can be complicated by severe neurological impairment (hence its severity). We report the case of a 49-year old patient hospitalized in the Department of Dermatology for rickettsiosis, who suffered from right massive hemiplegia of brutal onset. Read More

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http://dx.doi.org/10.11604/pamj.2017.26.80.11434DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5409985PMC
June 2017
23 Reads

Rickettsia conorii: Unusual cause of diarrhoea.

Gastroenterol Hepatol 2018 03 17;41(3):165-166. Epub 2017 Apr 17.

Aparato Digestivo, Hospital Universitario Puerta de Hierro-Majadahonda, Majadahonda, Madrid, España.

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http://dx.doi.org/10.1016/j.gastrohep.2017.02.011DOI Listing
March 2018
33 Reads

Israeli Spotted Fever in Sicily. Description of two cases and minireview.

Int J Infect Dis 2017 Aug 10;61:7-12. Epub 2017 Apr 10.

Dipartimento di Scienze per la Promozione Della Salute e Materno-Infantile, Università di Palermo, Italy. Electronic address:

Mediterranean spotted fever (MSF) is endemic in Italy, where Rickettsia conorii subsp. conorii was thought to be the only pathogenic rickettsia and Rhipicephalus sanguineus the vector and main reservoir. R. Read More

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http://dx.doi.org/10.1016/j.ijid.2017.04.003DOI Listing
August 2017
9 Reads

Epidemiological evaluation of Mediterranean spotted fever in children of the Karak province in south Jordan.

J Infect Dev Ctries 2017 Mar 31;11(3):242-246. Epub 2017 Mar 31.

Faculty of Medicine, Mutah University, Karak, Jordan.

Introduction: The aim of this study was to describe the epidemiological patterns of Mediterranean spotted fever (MSF) as well as its treatment and outcomes in children in south Jordan.

Methodology: A retrospective observational study was conducted from June 2013 to December 2015. Data regarding demographics, clinical presentation, laboratory findings, treatment, and outcomes were collected. Read More

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http://dx.doi.org/10.3855/jidc.8154DOI Listing
March 2017
15 Reads

Mediterranean spotted fever in Spain, 1997-2014: Epidemiological situation based on hospitalization records.

PLoS One 2017 29;12(3):e0174745. Epub 2017 Mar 29.

National Centre for Tropical Medicine, Health Institute Carlos III (ISCIII in Spanish), Madrid, Spain.

Introduction: Mediterranean spotted fever (MSF) is a zoonotic disease caused by Rickettsia conorii. In Spain, deficiencies in the official reporting result in misreporting of this disease. This study aims to describe the clinical and temporal-spatial characteristics of MSF hospitalizations between 1997 and 2014. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0174745PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5371374PMC
September 2017
21 Reads

[Late diagnosis of fatal invasive rickettsial disease in the Intensive Care Unit].

Pan Afr Med J 2016 6;25:211. Epub 2016 Dec 6.

Chirurgie Générale à la Faculté de Médecine de Tunis, Hôpital de Zaghouan, Avenue de l'Environnement, 1100 Zaghouan, Tunisie.

Mediterranean spotted fever is an infectious disease belonging to the rickettsial group due to an intracellular bacterium: Rickettsia Conorii. Pauci-symptomatic and benign forms are predominant. Severe forms are rare and increasingly reported in the recent literature with potentially life-threatening severe multi-systemic involvement. Read More

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http://dx.doi.org/10.11604/pamj.2016.25.211.10452DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5326238PMC
March 2017
13 Reads

Mediterranean Spotted Fever: A Rare Non-Endemic Disease in the USA.

Cureus 2017 Jan 12;9(1):e974. Epub 2017 Jan 12.

Department of Medicine, Overlook Medical Center.

We report a case of a 43-year-old Israeli male who presented with an intermittent fever associated with a gradual appearance of diffusely scattered erythematous non-pruritic maculopapular lesions, generalized body malaise, muscle aches, and distal extremity weakness. He works in the Israeli military and has been exposed to dogs that are used to search for people in tunnels and claimed that he had removed ticks from the dogs. In the hospital, he presented with fever, a diffuse maculopapular rash, and an isolated round black eschar. Read More

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http://dx.doi.org/10.7759/cureus.974DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5298912PMC
January 2017
10 Reads

Chronic inflammatory demyelinating polyneuropathy associated with Rickettsia conorii: First case report.

J Neurol Sci 2016 Dec 14;371:60-61. Epub 2016 Oct 14.

Department of Neurology, "IASO General" Hospital, Athens, Greece; 251 Hellenic Airforce Hospital, Athens, Greece.

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http://dx.doi.org/10.1016/j.jns.2016.10.015DOI Listing
December 2016
15 Reads
2.470 Impact Factor

Small Regulatory RNAs of Rickettsia conorii.

Sci Rep 2016 11 11;6:36728. Epub 2016 Nov 11.

Department of Pathology, The University of Texas Medical Branch, Galveston, TX, 77555, USA.

Small regulatory RNAs comprise critically important modulators of gene expression in bacteria, yet very little is known about their prevalence and functions in Rickettsia species. R. conorii, the causative agent of Mediterranean spotted fever, is a tick-borne pathogen that primarily infects microvascular endothelium in humans. Read More

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http://dx.doi.org/10.1038/srep36728DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5105140PMC
November 2016
13 Reads

Rickettsiae and rickettsial diseases in Croatia: Implications for travel medicine.

Travel Med Infect Dis 2016 Sep - Oct;14(5):436-443. Epub 2016 Jul 9.

Medica, Medizinische Laboratorien Dr. F. Kaeppeli, Wolfbachstrasse 17, CH-8024 Zurich, Switzerland. Electronic address:

Aim: To review the current state of knowledge concerning rickettsiae and rickettsioses in Croatia and to discuss their implications for travellers.

Methods: The PubMed database was searched from 1991 to 2015 by combining the words "rickettsia," "rickettsiosis", "travellers" and "Croatia".

Results: Since 1969, Croatia appears to be free of epidemic typhus (ET) caused by Rickettsia prowazekii and the last case of Brill-Zinsser disease was recorded in 2008. Read More

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http://dx.doi.org/10.1016/j.tmaid.2016.06.010DOI Listing
May 2017
17 Reads

Macrophagic activation syndrome related to an infection by Rickettsia conorii in a child.

Arch Pediatr 2016 Oct 15;23(10):1076-1079. Epub 2016 Sep 15.

Hedi Chaker hospital, pediatric department, Sfax, Tunisia; Faculty of medicine, Sfax, Tunisia.

Since the Arab Spring, a resurgence of zoonotic diseases such as rickettsiosis, endemic in the Mediterranean basin, has been observed. It preferentially infects microvascular endothelial cells of mammalian hosts inducing vasculitis with endothelial injury. Rickettsioses are considered benign infectious diseases. Read More

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http://dx.doi.org/10.1016/j.arcped.2016.07.008DOI Listing
October 2016
5 Reads

Survey of Zoonoses in Extremadura, Spain.

Jpn J Infect Dis 2016 ;69(4):352

Animal Health Department, University of Extremadura.

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http://dx.doi.org/10.7883/yoken.JJID.2015.647DOI Listing
January 2017
10 Reads

Reply to the Letter to the Editor from R. Calero-Bernal et al.

Jpn J Infect Dis 2016 ;69(4):352-4

Department of Microbiology, Hospital General La Mancha Centro.

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http://dx.doi.org/10.7883/yoken.JJID.2016.093DOI Listing
January 2017
6 Reads

Scrub typhus and spotted fever among hospitalised children in South India: Clinical profile and serological epidemiology.

Indian J Med Microbiol 2016 Jul-Sep;34(3):293-8

Department of Pediatrics, St. John's Medical College Hospital, Bengaluru, Karnataka, India.

Background: Rickettsial infections are re-emerging. In India, they are now being reported from several areas where they were previously unknown.

Objectives: The objective of this study was to describe the epidemiology, clinical profile and outcome of serologically-confirmed scrub typhus and spotted fever among children in a tertiary care hospital in Bengaluru. Read More

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http://dx.doi.org/10.4103/0255-0857.188315DOI Listing
February 2017
10 Reads

Malignant forms of Mediterranean spotted fever: risk factors for fatal outcomes.

Braz J Infect Dis 2016 Sep-Oct;20(5):511-2. Epub 2016 Jul 21.

Medical University, Faculty of Medicine, Department of Clinical Pathology, Plovdiv, Bulgaria.

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http://dx.doi.org/10.1016/j.bjid.2016.06.002DOI Listing
April 2017
6 Reads

Mediterranean spotted fever-like illness in Sardinia, Italy: a clinical and microbiological study.

Infection 2016 Dec 5;44(6):733-738. Epub 2016 Jul 5.

Unit of Infectious Diseases, Department of Clinical and Experimental Medicine, University of Sassari, Viale San Pietro 8, 07100, Sassari, Italy.

Introduction: Rickettsioses represent a group of emerging infectious diseases in Europe. Climate changes and the anthropization of rural environment have favored vectors' biological cycle and geographic spread. In Sardinia, Mediterranean spotted fever (MSF) is endemic and represents an important public health problem. Read More

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http://dx.doi.org/10.1007/s15010-016-0921-zDOI Listing
December 2016
18 Reads

Rickettsia conorii is a potent complement activator in vivo and combined inhibition of complement and CD14 is required for attenuation of the cytokine response ex vivo.

Clin Microbiol Infect 2016 Aug 20;22(8):734.e1-6. Epub 2016 May 20.

Department of Immunology, Oslo University Hospital Rikshospitalet, Oslo, Norway; K.G. Jebsen Inflammatory Research Center, University of Oslo, Oslo, Norway. Electronic address:

Mediterranean spotted fever caused by Rickettsia conorii is a potentially lethal disease characterized by vascular inflammation affecting multiple organs. Studies of R. conorii so far have focused on activation of inflammatory cells and their release of inflammatory cytokines, but complement activation has not been investigated in R. Read More

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http://dx.doi.org/10.1016/j.cmi.2016.05.010DOI Listing
August 2016
11 Reads

Spotted fever group rickettsiae in ticks of migratory birds in Romania.

Parasit Vectors 2016 05 20;9(1):294. Epub 2016 May 20.

Department of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Calea Mănăştur 3-5, Cluj Napoca, Romania.

Background: Birds are important hosts and dispersers of parasitic arthropods and vector-borne zoonotic pathogens. Particularly migratory species may carry these parasites over long distances in short time periods. Migratory hotspots present ideal conditions to get a snapshot of parasite and pathogen diversity of birds migrating between continents. Read More

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http://dx.doi.org/10.1186/s13071-016-1565-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4875720PMC
May 2016
7 Reads

Rickettsia parkeri colonization in Amblyomma maculatum: the role of superoxide dismutases.

Parasit Vectors 2016 05 20;9(1):291. Epub 2016 May 20.

Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, 39406, USA.

Background: The Gulf Coast tick (Amblyomma maculatum) is an arthropod vector of Rickettsia parkeri, the causative agent of American boutonneuse fever and an infectious agent of public health significance. In this study, we evaluated the biological significance of the superoxide dismutases (SODs) of A. maculatum in hematophagy and R. Read More

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http://dx.doi.org/10.1186/s13071-016-1579-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4873992PMC
May 2016
9 Reads

High serum CXCL10 in Rickettsia conorii infection is endothelial cell mediated subsequent to whole blood activation.

Cytokine 2016 07 12;83:269-274. Epub 2016 May 12.

Department of Immunology, Oslo University Hospital Rikshospitalet, P.B. 4950 Nydalen, 0424 Oslo, Norway; K.G. Jebsen Inflammatory Research Center, University of Oslo, P.B. 4950 Nydalen, 0424 Oslo, Norway.

Background: The pathophysiological hallmark of Rickettsia conorii (R. conorii) infection comprises infection of endothelial cells with perivascular infiltration of T-cells and macrophages. Although interferon (IFN)-γ-induced protein 10 (IP-10)/CXCL10 is induced during vascular inflammation, data on CXCL10 in R. Read More

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http://dx.doi.org/10.1016/j.cyto.2016.05.006DOI Listing
July 2016
23 Reads

T-Lymphocyte Subset Absolute Counts in the Peripheral Blood of Mediterranean Spotted Fever Patients: Relations to Disease Severity.

Folia Med (Plovdiv) 2015 Apr-Jun;57(2):93-103

Department of Clinical Laboratory, Faculty of Pharmacy, St. George University Hospital, Medical University, Plovdiv, Bulgaria

Introduction: Mediterranean spotted fever (MSF) in Bulgaria is caused by Rickettsia conorii conorii.

Aim: This study aims at investigating the absolute counts of T-lymphocyte subsets in the peripheral blood of patients with MSF in order to establish relationships with disease severity.

Materials And Methods: The absolute counts of T-lymphocyte subsets were tested in the blood of 62 patients in the acute stage of MSF. Read More

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http://dx.doi.org/10.1515/folmed-2015-0026DOI Listing
May 2016
14 Reads

Severe Israeli spotted fever with multiorgan failure in a child.

Ticks Tick Borne Dis 2016 07 12;7(5):663-664. Epub 2016 Feb 12.

Dona Estefânia Hospital, Rua Jacinta Marto, 1169-045 Lisbon, Portugal.

An increased risk of severe and fatal Israeli spotted fever (ISF) has been observed in adults, mostly associated with ISF strain. Here, we report a case of severe ISF with multiorgan failure in a Portuguese child. Read More

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http://dx.doi.org/10.1016/j.ttbdis.2016.02.013DOI Listing
July 2016
20 Reads

Prevalence of antibodies to Rickettsia conorii in human beings and dogs from Catalonia: a 20-year perspective.

Epidemiol Infect 2016 07 22;144(9):1889-94. Epub 2016 Feb 22.

Infectious Diseases Unit,Internal Medicine Service,Hospital de Terrassa,Terrassa,Spain.

The incidence of Mediterranean spotted fever (MSF) in Catalonia (Spain) has decreased in the last two decades. The prevalence of antibodies to Rickettsia conorii in human beings and dogs in the region of Vallès Occidental (Catalonia) was assessed by indirect immunofluorescence, and the results compared with those obtained in a similar study from 1987. Nineteen (5·0%) out of 383 human serum samples had antibodies to R. Read More

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http://dx.doi.org/10.1017/S0950268816000261DOI Listing
July 2016
9 Reads

Shell-vial culture, coupled with real-time PCR, applied to Rickettsia conorii and Rickettsia massiliae-Bar29 detection, improving the diagnosis of the Mediterranean spotted fever.

Ticks Tick Borne Dis 2016 Apr 19;7(3):457-61. Epub 2016 Jan 19.

Corporació Sanitària Parc Taulí - Institut Universitari Parc Taulí - Universitat Autonoma de Barcelona, Parc Taulí 1, Sabadell, Barcelona, 08208, Spain. Electronic address:

Rickettsia conorii and Rickettsia massiliae-Bar29 are related to Mediterranean spotted fever (MSF). They are intracellular microorganisms. The Shell-vial culture assay (SV) improved Rickettsia culture but it still has some limitations: blood usually contains low amount of microorganisms and the samples that contain the highest amount of them are non-sterile. Read More

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http://dx.doi.org/10.1016/j.ttbdis.2016.01.008DOI Listing
April 2016
11 Reads

Characterization of spotted fever group Rickettsiae in ticks from a city park of Rome, Italy.

Ann Ist Super Sanita 2015 ;51(4):284-90

Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, Rome, Italy.

Background: Ticks are vectors and important reservoirs for microbial agents that cause disease in humans and animals. Among these pathogens, the members of Rickettsia species play an important role in public health.

Aim And Methods: One hundred twenty-nine ticks belonging to four tick species (Ixodes ricinus, Rhipicephalus turanicus, Dermacentor marginatus, and Haemaphysalis punctata) were collected at different sites of the Insugherata Natural Reserve, localized in the urban area of Rome, Italy. Read More

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http://dx.doi.org/10.4415/ANN_15_04_07DOI Listing
February 2017
12 Reads

Nonselective Persistence of a Rickettsia conorii Extrachromosomal Plasmid during Mammalian Infection.

Infect Immun 2016 Jan 11;84(3):790-7. Epub 2016 Jan 11.

Vector Borne Disease Laboratories, Louisiana State University School of Veterinary Medicine, Baton Rouge, Louisiana, USA Department of Pathobiological Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, Louisiana, USA

Scientific analysis of the genus Rickettsia is undergoing a rapid period of change with the emergence of viable genetic tools. The development of these tools for the mutagenesis of pathogenic bacteria will permit forward genetic analysis of Rickettsia pathogenesis. Despite these advances, uncertainty still remains regarding the use of plasmids to study these bacteria in in vivo mammalian models of infection, namely, the potential for virulence changes associated with the presence of extrachromosomal DNA and nonselective persistence of plasmids in mammalian models of infection. Read More

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http://dx.doi.org/10.1128/IAI.01205-15DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771360PMC
January 2016
11 Reads

[ON THE ROLE OF RICKETTSIA RAOULTII IN THE EPIDEMIOLOGY OF RICKETTSIOSES IN RUSSIA].

Med Parazitol (Mosk) 2015 Jul-Sep(3):17-21

The paper analyzes data on the prevalence and possible epidemiological importance of Rickettsia raoultii. The possible risk of infection in the population was assessed from the results of a serological study of patients after tick suction and from those of molecular biological determination of contamination of removed carriers. The place of Rickettsia raoultii among other rickettsia causing rickettsioses of a tick-borne spotted fever group is assessed in Russia. Read More

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February 2016
4 Reads

Randomized Trial of Clarithromycin for Mediterranean Spotted Fever.

Antimicrob Agents Chemother 2015 Dec 28;60(3):1642-5. Epub 2015 Dec 28.

Department of Infectious Diseases, Corporació Sanitària Parc Taulí, Sabadell, Barcelona, Spain Universitat Autònoma de Barcelona, Barcelona, Spain.

The classic antibiotic treatment for Mediterranean spotted fever (MSF) is based on tetracyclines or chloramphenicol, but chloramphenicol's bone marrow toxicity makes tetracyclines the treatment of choice. However, it is convenient to have alternatives available for patients who are allergic to tetracyclines, pregnant women, and children <8 years old. We conducted a randomized clinical trial to compare clarithromycin with doxycycline or josamycin in the treatment of MSF. Read More

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http://dx.doi.org/10.1128/AAC.01814-15DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4776005PMC
December 2015
16 Reads

[Mediterranean Spotted Fever: Retrospective Review of Hospitalized Cases and Predictive Factors of Severe Disease].

Acta Med Port 2015 Sep-Oct;28(5):624-31. Epub 2015 Oct 30.

Unidade de Cuidados Intermédios Médico-Cirúrgicos. Centro Hospitalar do Porto. Porto. Portugal.

Introduction: Mediterranean spotted fever, an ancient zoonotic disease raising current issues. This study aims to reevaluate the disease clinical picture and to identify prognostic factors related to severe disease.

Material And Methods: We evaluate cases admitted to a central hospital during 12-year period. Read More

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February 2018
23 Reads

[Guillain-Barré syndrome. Early ultrasound findings].

Rev Neurol 2015 Nov;61(10):471

Complejo Hospitalario Universitario de Albacete, Albacete, Espana.

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November 2015
8 Reads

Evaluation of a new serological test for the detection of anti-Coxiella and anti-Rickettsia antibodies.

Microbes Infect 2015 Nov-Dec;17(11-12):811-6. Epub 2015 Sep 30.

Institute of Microbiology, University of Lausanne, University Hospital Center, Lausanne, Switzerland. Electronic address:

Coxiella burnetii and members of the genus Rickettsia are obligate intracellular bacteria. Since cultivation of these organisms requires dedicated techniques, their diagnosis usually relies on serological or molecular biology methods. Immunofluorescence is considered the gold standard to detect antibody-reactivity towards these organisms. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S12864579150019
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http://dx.doi.org/10.1016/j.micinf.2015.09.015DOI Listing
October 2016
15 Reads

Rickettsia massiliae and Rickettsia conorii Israeli Spotted Fever Strain Differentially Regulate Endothelial Cell Responses.

PLoS One 2015 22;10(9):e0138830. Epub 2015 Sep 22.

Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America.

Rickettsiae primarily target microvascular endothelial cells. However, it remains elusive how endothelial cell responses to rickettsiae play a role in the pathogenesis of rickettsial diseases. In the present study, we employed two rickettsial species with high sequence homology but differing virulence to investigate the pathological endothelial cell responses. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138830PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578955PMC
June 2016
28 Reads

[Mediterranean Spotted Fever: epidemiological Assessment in Spain during the Period 2009-2012].

Rev Esp Salud Publica 2015 May-Jun;89(3):321-8

Background: The Mediterranean Spotted Fever (MSF) is a zoonosis, produced by Rickettsia conorii whose vector is Rhipicephallus sanguineus. The aim of this study was to describe the epidemiology in Spain and its Autonomous Communities (AA.CC) and the average cost during the period 2009-2012. Read More

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http://dx.doi.org/10.4321/S1135-57272015000300009DOI Listing
May 2016
5 Reads

A case of Mediterranean spotted fever associated with severe respiratory distress syndrome.

Microbes Infect 2015 Nov-Dec;17(11-12):870-3. Epub 2015 Sep 3.

Intensive Care Unit, Zadar General Hospital, Zadar, Croatia; Faculty of Medicine, University of Osijek, Osijek, Croatia.

Mediterranean spotted fever (MSF) is usually a mild endemic rickettsial disease occurring in southern Croatia. We have reported the clinical and epidemiological characteristics of an acute MSF case associated with severe respiratory distress syndrome and hemodynamical instability. The patient recovered completely after antimicrobial treatment. Read More

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http://dx.doi.org/10.1016/j.micinf.2015.08.012DOI Listing
October 2016
10 Reads