373 results match your criteria Balantidiasis


Neglected Case of Human Balantidiasis: Presumed as Antibiotic-Associated Diarrhoea.

Case Rep Infect Dis 2022 13;2022:6013151. Epub 2022 Jun 13.

Tri-Chandra Multiple Campus, Kathmandu, Nepal.

Background: Balantidiasis, due to its rare human incidence and nonspecific clinical presentations often neglected from the diagnosis considerations; however, a potent pathogen. Herein, we report a case of neglected balantidiasis presumed as antibiotic-associated diarrhoea. . Read More

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; Rare and Accidental Finding in the Urine of Pregnant Woman: Case Report.

Int Med Case Rep J 2022 22;15:105-109. Epub 2022 Mar 22.

Department of Pharmacy, Bahir Dar University, Bahir Dar, Ethiopia.

Background: is a ciliated protozoan parasite, which causes intestinal and extraintestinal infections in humans. It is transmitted feco-orally by ingesting infective cysts with food and water. Urinary balantidiasis may occur through contamination (direct spread from the anal area), secondarily to rectovaginal fistula and following immune suppression. Read More

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Prevalence and risk factors of human Balantidium coli infection and its association with haematological and biochemical parameters in Ga West Municipality, Ghana.

BMC Infect Dis 2021 Oct 9;21(1):1047. Epub 2021 Oct 9.

School of Basic and Biomedical Sciences, Department of Biomedical Sciences, University of Health and Allied Sciences, PMB 31, Ho, Volta Region, Ghana.

Background: In Ghana, Balantidium coli (B. coli) has been identified in vegetables and in pigs, although there is a paucity of data regarding human balantidiosis. This study sought to assess human B. Read More

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October 2021

Identification of Zoonotic in Pigs by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) and Its Distribution in Korea.

Animals (Basel) 2021 Sep 10;11(9). Epub 2021 Sep 10.

College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.

is a zoonotic protozoan parasite whose main reservoir is pigs. Recent studies have shown that variant A but not B has zoonotic potential. While infection has been reported in different animals and countries, the prevalence of the zoonotic variant is limited due to a lack of molecular information. Read More

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September 2021

Balantidiasis in humans: A systematic review and meta-analysis.

Acta Trop 2021 Nov 31;223:106069. Epub 2021 Jul 31.

Microbiology and Parasitology Department, Federal Fluminense University, Biomedical Institute, Professor Hernani de Mello Street, 101, São Domingos, Niterói, Rio de Janeiro 24210-130, Brazil; Toxoplasmosis and other Protozoosis Laboratory, Oswaldo Cruz Institut, Oswaldo Cruz Foudation, Brazil Avenue, 4365, Manguinhos, Rio de Janeiro 21045-900, Brazil. Electronic address:

Balantioides coli is a protozoan that infects different hosts species, including humans, with zoonotic transmission. The parasite, which lives in the large intestine and in other organs, can lead to serious infections that may culminate in death. Information about human balantidiasis is generally still very scanty. Read More

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November 2021

Prevalence of (Malmsten, 1857) infection in swine reared in South Italy: A widespread neglected zoonosis.

Vet World 2021 Apr 30;14(4):1044-1049. Epub 2021 Apr 30.

Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, 98168 Messina, Italy.

Background And Aim: Balantidiasis, caused by (syn. or ), represents a neglected parasitic infection of zoonotic significance affecting a variety of hosts, including domestic pigs that are the main reservoir. has a direct life cycle with a fecal-oral route transmission that occurs mainly by the ingestion of food and water contaminated with cysts. Read More

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Modified DMEM xenic culture medium for propagation, isolation and maintenance of Balantioides coli.

Acta Trop 2021 Feb 21;214:105762. Epub 2020 Nov 21.

Parasitology Laboratory, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China.

Balantioides coli is a known ciliated zoonotic protozoan that mainly causes diarrhea in humans and pigs. An efficient and reliable culture system for this parasite remains unavailable until now. In this study, a modified Dulbecco's modified eagle medium (DMEM) with pH 7. Read More

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February 2021

Balantioides coli.

Res Vet Sci 2021 Mar 4;135:424-431. Epub 2020 Nov 4.

Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.

Balantioides coli (=Balantidium coli) is the only ciliate that parasitizes humans. Pigs are the main reservoir. Other species, as camels, cattle, donkey, sheep and goat have been also proposed as reservoirs for human infections. Read More

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Alterations in the diversity and composition of gut microbiota in weaned piglets infected with Balantioides coli.

Vet Parasitol 2020 Dec 3;288:109298. Epub 2020 Nov 3.

Parasitology Laboratory, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China.

Balantioides coli is a ciliated parasite that can cause diarrhea when inhabiting the colon and cecum of pigs and humans. However, information regarding the changes in structure and composition of the gut microbiome in piglets infected with B. coli remains scarce. Read More

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December 2020

Prevalence and molecular identification of Balantioides coli isolates from pet guinea pigs in Central China.

Parasitol Res 2020 Nov 10;119(11):3763-3770. Epub 2020 Sep 10.

College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, China.

Balantioides coli is the only known zoonotic ciliate that can infect humans and is usually acquired from swine. It has, however, been reported in other mammals, including guinea pigs, where infection prevalence and molecular characterization are relatively unknown. In the present study, 32 guinea pigs from two different pet markets in Luoyang city of the Henan province in China were evaluated for ciliate-like trophozoites or cysts by direct fecal smear microscopy. Read More

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November 2020

Urinary balantidiasis in a patient with systemic lupus erythematosus and lupus nephritis: a case report.

J Med Case Rep 2020 May 28;14(1):63. Epub 2020 May 28.

Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand.

Background: Balantidium coli, a parasitic unicellular ciliate, often causes asymptomatic balantidiasis of the colon, but extraintestinal disease may occur rarely in immunosuppressed individuals. Renal balantidiasis associated with systemic lupus erythematosus has not been reported before.

Case Presentation: We present a case of a 48-year-old Thai woman who presented with nephrotic syndrome due to systemic lupus erythematosus-related nephritis. Read More

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Dysentery Caused by Balantidium coli in China.

Korean J Parasitol 2020 Feb 29;58(1):47-49. Epub 2020 Feb 29.

Department of Clinical Laboratory Medicine, Shanxi Bethune Hospital & Shanxi Academy of Medical Sciences, Taiyuan, 030009, Shanxi, PR China.

Balantidium coli human infection predominantly occurs in tropical and subtropical regions in the world. Human case is extremely rare in China. This report details a case of B. Read More

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February 2020

Balantidium coli in domestic animals: An emerging protozoan pathogen of zoonotic significance.

Acta Trop 2020 Mar 16;203:105298. Epub 2019 Dec 16.

Department of Clinical Medicine and Surgery, University of veterinary and animal sciences, Lahore 54600, Pakistan.

Balantidium coli (B. coli) is an emerging ciliated protozoan parasite of zoonotic importance which causes a disease balantidiasis in a variety of host species including pigs, camels, ruminants, equines and even human. This disease has a cosmopolitan distribution with high prevalence rates in tropical and sub-tropical areas of the world due to favorable geo-climatic conditions for the development and survival of the parasite in these regions. Read More

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Endoparasitism of Greek ostriches: First report of Entamoeba struthionis and Balantioides coli.

Vet Parasitol Reg Stud Reports 2019 12 31;18:100334. Epub 2019 Aug 31.

Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.

Ostrich farming is a worldwide practice and an internationally developing industry. Among challenges in livestock production are the parasitic infections. The present study aimed to the investigation of the gastrointestinal parasites biota and prevalence in ostriches raised in different areas of Greece. Read More

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December 2019

[Colonic balantidiasis: report of a fatal case and review of the literature].

Rev Gastroenterol Peru 2019 Jul-Sep;39(3):284-287

Hospital Nacional Cayetano Heredia. Lima, Per ú; Universidad Peruana Cayetano Heredia. Lima, Per ú.

Balantidiasis is a zoonosis produced by Balantidium coli, which inhabits the large intestine of the pig and man. Infection is uncommon in humans and mainly affects the colon. It occurs more frequently in developing countries, tropical and subtropical regions. Read More

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Neobalantidium coli: First molecular identification from the Eurasian wild boar, Sus Scrofa in Bushehr Province, Southwestern Iran.

Vet Med Sci 2020 02 24;6(1):142-146. Epub 2019 Oct 24.

Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Balantidium coli is a common parasite of pig and wild boars (Sus scrofa) which can infect humans and several species of mammals. This study aimed to determine the genotype of Balantidium isolated from Eurasian wild boars in Bushehr province, Southwestern Iran. Twenty-five faecal samples, originating from 25 wild boars captivated in our previous study, were processed. Read More

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February 2020

Balantidiasis in an Asiatic elephant and its therapeutic management.

J Parasit Dis 2019 Jun 19;43(2):186-189. Epub 2018 Dec 19.

1Division of Medicine, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh India.

A 14 years old female Asiatic elephant was presented to the hospital with a history of mucoid watery diarrhea, inappetence and lethargy. Clinical examination revealed normal body temperature (98.2 °F), tachycardia (42 bpm), eupnoea (14/min), congested mucous membrane and dehydration. Read More

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Paromomycin sulfate is an effective treatment for balantidiasis in captive cynomolgus monkeys.

Exp Anim 2019 Aug 28;68(3):285-292. Epub 2019 Feb 28.

Research Center for Animal Life Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192, Japan.

There are few effective antimicrobial agents against Balantidium coli infection. The effect of paromomycin sulfate (PS) against B. coli was confirmed in this study of 596 captive cynomolgus monkeys. Read More

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The First Case of Diarrhoea in Tibetan Sheep, Ovis aries, Caused by Balantidium coli in the Qinghai Tibetan Plateau Area, China.

Korean J Parasitol 2018 Dec 31;56(6):603-607. Epub 2018 Dec 31.

State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Qinghai Academy of Animal Sciences and Veterinary Medicine, Qinghai University, Xining City, 810016, Qinghai Province, P. R. China.

This study was carried out to determine the pathogen-causing diarrhoea in sheep Ovis aries in the Qinghai Tibetan Plateau Area, China. A trophozoite was identified as species of ciliate alveolates infecting the sheep based on morphological characteristics examined by microscope. It was mostly spherical, colourless and transparent, with many vesicles. Read More

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December 2018

Diversity and prevalence of gastrointestinal parasites in two wild Galago species in Gabon.

Infect Genet Evol 2018 09 27;63:249-256. Epub 2018 Apr 27.

Muséum National d'Histoire Naturelle, UMR 7205 CNRS MNHN UPMC EPHE, 55, rue Buffon, 75231 Paris, Cedex 05, France. Electronic address:

In this study, we characterize the diversity and estimated infection levels of gastrointestinal parasites circulating in two galago species, Galago demidoff and G. thomasi in two sites situated in the Southeastern forests of Gabon. Our study reveals that eleven parasites including nine helminthes (Ascaris spp. Read More

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September 2018

Phylogenomic analysis of Balantidium ctenopharyngodoni (Ciliophora, Litostomatea) based on single-cell transcriptome sequencing.

Parasite 2017 14;24:43. Epub 2017 Nov 14.

Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan 430072, Hubei Province, PR China.

In this paper, we present transcriptome data for Balantidium ctenopharyngodoni Chen, 1955 collected from the hindgut of grass carp (Ctenopharyngodon idella). We evaluated sequence quality and de novo assembled a preliminary transcriptome, including 43.3 megabits and 119,141 transcripts. Read More

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A Comparative Study of Four Methods for the Detection of Nematode Eggs and Large Protozoan Cysts in Mandrill Faecal Material.

Folia Primatol (Basel) 2017 18;88(4):344-357. Epub 2017 Oct 18.

Ecole Nationale Vétérinaire de Nantes - Oniris, Nantes, France.

Coproscopical methods like sedimentation and flotation techniques are widely used in the field for studying simian gastrointestinal parasites. Four parasites of known zoonotic potential were studied in a free-ranging, non-provisioned population of mandrills (Mandrillus sphinx): 2 nematodes (Necatoramericanus/Oesophagostomum sp. complex and Strongyloides sp. Read More

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Urinary balantidiasis: A rare incidental finding in a patient with chronic obstructive pulmonary disease.

J Cytol 2016 Jul-Sep;33(3):169-171

Department of Pathology, Bhopal Memorial Hospital and Research Centre, Department of Health Research, Bhopal, Madhya Pradesh, India.

Balantidiasis is a rare zoonotic disease in humans. is the causative ciliated protozoan. We present a case of urinary balantidiasis in a patient having chronic obstructive pulmonary disease (COPD) who was on steroids for a long time. Read More

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October 2016

Occurrence, clinical involvement and zoonotic potential of endoparasites infecting Swiss pigs.

Parasitol Int 2016 Dec 14;65(6 Pt A):618-624. Epub 2016 Sep 14.

Institute of Parasitology, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 266a, CH-8057 Zurich, Switzerland; Department of Farm Animals, Division of Swine Medicine, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland. Electronic address:

In order to estimate the diversity, clinical involvement and zoonotic potential of parasites in pigs submitted for diagnosis to the PathoPig project of the Swiss Federal Food Safety and Veterinary Office, faeces (n=125) from suckling piglets (n=39), weaners (n=60) and piglets beginning fattening (n=26) from 74 Swiss farms were examined by 3 coproscopical methods (i.e. sedimentation/zinc chloride-flotation; SAFC and Ziehl-Neelsen staining). Read More

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December 2016

Comparison of five parasitological techniques for laboratory diagnosis of Balantidium coli cysts.

Rev Bras Parasitol Vet 2016 Jul-Sep;25(3):286-92. Epub 2016 Aug 25.

Laboratório de Toxoplasmose, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz-RJ, Rio de Janeiro, RJ, Brasil.

Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for detecting cysts of this protozoon. Read More

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Rare Case of Polymicrobial Keratitis With Balantidium coli.

Cornea 2016 Dec;35(12):1665-1667

Departments of *Ophthalmology; and†Microbiology, Kasturba Medical College, Manipal University, Manipal, Udupi, Karnataka, India.

Purpose: To report a rare case of polymicrobial keratitis due to Balantidium coli and gram-negative bacteria, Pseudomonas aeruginosa and Klebsiella pneumoniae, in a soft contact lens (CL) wearer.

Methods: We report a case of CL-related keratitis due to B. coli, P. Read More

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December 2016

Molecular genetic investigations on Balantidium ctenopharyngodoni Chen, 1955, a parasite of the grass carp (Ctenopharyngodon idella).

Acta Vet Hung 2016 Jun;64(2):213-21

Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences , P.O. Box 18, H-1581 Budapest , Hungary.

Balantidium ctenopharyngodoni is a common ciliate in Hungary, infecting the hindgut of grass carp (Ctenopharyngodon idella), a cyprinid fish of Chinese origin. Although data have already been presented on its occasional pathogenic effect on the endothelium of the host, generally it is a harmless inhabitant of the gut. Phylogenetic analysis of the 18S rDNA and ITS fragments of this protozoan proved that it is in the closest phylogenetic relationship with endocommensalist and symbiont ciliates of mammals feeding on large volumes of green forage, in a similar way as Balantidium spp. Read More

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[Advances in researches of balantidiosis].

Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2016 Apr;28(3):345-348

Shandong Academy of Medical Sciences, Institute of Parasite Diseases, Shandong Province, Jining 272133, China.

Balantidiosis is a disease infected with , and swine is the main infection source. The infection of may cause diarrhea, extra intestinal infection and co-infection with other pathogens and even intestinal necrosis. Strengthening the manure management of both human and livestock, paying attention to personal hygiene and labor protection, and timely treatment of the patients are the main measures to control balantidiosis. Read More

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A case report of an uncommon parasitic infection of human balantidiasis.

Trop Parasitol 2016 Jan-Jun;6(1):82-4

Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.

Balantidium coli, a large, ciliated pathogen, is known to cause balantidiasis in humans. We report a case of B. coli infection in a 37-year-old male with tuberculosis and presenting with fever, anorexia, mild abdominal pain, and episodes of loose stools for 1 week. Read More

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Endoparasite survey of free-swimming baleen whales (Balaenoptera musculus, B. physalus, B. borealis) and sperm whales (Physeter macrocephalus) using non/minimally invasive methods.

Parasitol Res 2016 Feb 23;115(2):889-96. Epub 2015 Nov 23.

Institute of Parasitology, Biomedical Research Center Seltersberg, Justus Liebig University Giessen, Schubertstr. 81, 35392, Giessen, Germany.

A number of parasitic diseases have gained importance as neozoan opportunistic infections in the marine environment. Here, we report on the gastrointestinal endoparasite fauna of three baleen whale species and one toothed whale: blue (Balaenoptera musculus), fin (Balaenoptera physalus), and sei whales (Balaenoptera borealis) and sperm whales (Physeter macrocephalus) from the Azores Islands, Portugal. In total, 17 individual whale fecal samples [n = 10 (B. Read More

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February 2016