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Hailu AW, Degarege A, Petros B, Costa D, Ayene YY, Villier VC, Mouhajir A, Favennec L, Razakandrainibe R, Adamu H. Genetic diversity of Cryptosporidium spp. in non-human primates in rural and urban areas of Ethiopia. PLoS One 2022; 17:e0267103. [PMID: 35421188 PMCID: PMC9009656 DOI: 10.1371/journal.pone.0267103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 04/01/2022] [Indexed: 11/18/2022] Open
Abstract
Non-Human Primates (NHPs) harbor Cryptosporidium genotypes that can infect humans and vice versa. NHPs Chlorocebus aethiops and Colobus guereza and humans have overlapping territories in some regions of Ethiopia, which may increase the risk of zoonotic transmission of Cryptosporidium. This cross-sectional study examined the molecular prevalence and subtypes of Cryptosporidium spp. from 185 fecal samples of Chlorocebus aethiops and Colobus guereza in rural and urban areas in Ethiopia. Samples were tested for Cryptosporidium infection using nested polymerase chain reaction (PCR), and subtypes were determined by sequencing a fragment of the 60-kDa glycoprotein gene (gp60). Of the 185 samples, fifty-one (27.56%) tested positive for Cryptosporidium infection. The species detected were C. parvum (n = 34), C. hominis (n = 12), and C. cuniculus (n = 3). Mixed infection with C. parvum and C. hominis were detected in 2 samples. Four C. hominis family subtypes (Ia, Ib, Id, and Ie) and one C. parvum family subtype (IIa) were identified. C. hominis IaA20 (n = 7) and C. parvum IIaA17G1R1 (n = 6) were the most prevalent subtypes detected. These results confirm that Chlorocebus aethiops and Colobus guereza can be infected with diverse C. parvum and C. hominis subtypes that can also potentially infect humans. Additional studies could help to understand the role of NHPs in the zoonotic transmission of Cryptosporidium in Ethiopia.
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Affiliation(s)
- Ambachew W. Hailu
- Department of Microbial Cellular and Molecular Biology, Biomedical Sciences Stream Addis Ababa University, Addis Ababa, Ethiopia
- * E-mail:
| | - Abraham Degarege
- Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Beyene Petros
- Department of Microbial Cellular and Molecular Biology, Biomedical Sciences Stream Addis Ababa University, Addis Ababa, Ethiopia
| | - Damien Costa
- EA ESCAPE 7510, University of Medicine Pharmacy Rouen, Rouen, France
- CNR LE Cryptosporidiosis, Santé Publique France, Rouen, France
| | - Yonas Yimam Ayene
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Loic Favennec
- EA ESCAPE 7510, University of Medicine Pharmacy Rouen, Rouen, France
- CNR LE Cryptosporidiosis, Santé Publique France, Rouen, France
| | - Romy Razakandrainibe
- EA ESCAPE 7510, University of Medicine Pharmacy Rouen, Rouen, France
- CNR LE Cryptosporidiosis, Santé Publique France, Rouen, France
| | - Haileeysus Adamu
- Institute of Biotechnology, Addis 12 Ababa University, Addis Ababa, Ethiopia
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Dahal A, Barnabas F, Damen J, Udo W, Mantu E, Joseph S, Ekpo M, Ashien U. Soil-transmitted helminths contamination of carrots and cucumbers, and molecular identification of Ascaris lumbricoides in Jos Plateau State, Nigeria. Niger J Med 2022. [DOI: 10.4103/njm.njm_75_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
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Jaiswal V, Brar APS, Sandhu BS, Singla LD, Narang D, Leishangthem GD, Kaur P. Comparative evaluation of various diagnostic techniques for detection of Cryptosporidium infection from the faecal samples of diarrhoeic bovine calves. Iran J Vet Res 2022; 23:247-254. [PMID: 36425600 PMCID: PMC9681974 DOI: 10.22099/ijvr.2022.42714.6204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/23/2022] [Accepted: 04/19/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Cryptosporidium, an opportunistic, zoonotic, apicomplexan parasite, is one of the most common causes of diarrhea in neonatal bovine calves around the globe. Bovine calves act as a major source of infection by excreting huge numbers of highly resistant oocysts in faeces, which can survive for a long time in extreme environmental conditions. As low as ten oocysts can cause disease and mortality, leading to the requirement of an early and accurate diagnosis for proper and favorable prognosis, management, and control. AIMS The current study was conducted with the objective to evaluate various diagnostic techniques (acid fast staining, negative staining, fluorescent, ELISA, PCR, nested PCR, and qPCR) for the detection of Cryptosporidium in the faecal samples of diarrheic bovine calves. METHODS Two hundred diarrheic faecal samples from bovine calves were collected and subjected to these techniques for Cryptosporidium diagnosis. Results of these were evaluated for diagnostic comparison. RESULTS Out of 200 faecal samples evaluated, 24% (48/200) were detected positive for Cryptosporidium using a combination of two techniques as gold standard criteria. Cohen's kappa value indicated moderate to almost perfect agreement (0.616 to 0.986) among all the techniques used in the present study. Leishman staining showed the lowest sensitivity (54.17%), while nested PCR and qPCR showed the highest sensitivity (97.92%). Diagnostic specificity of all these tests ranged from 98.68 to 100%. CONCLUSION Auramine stain was used for the first time in the bovine calves in India for the detection and diagnostic comparison of Cryptosporidium. It showed strong agreement with the molecular as well as classical diagnostic techniques, and can be used for primary screening for better diagnosis.
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Affiliation(s)
- V. Jaiswal
- Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - A. P. S. Brar
- Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - B. S. Sandhu
- Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - L. D. Singla
- Department of Veterinary Parasitology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - D. Narang
- Department of Veterinary Microbiology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - G. D. Leishangthem
- Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
| | - P. Kaur
- MSc in Biochemistry, Department of Veterinary Pathology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab, India
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Mammeri M, Chevillot A, Chenafi I, Thomas M, Julien C, Vallée I, Polack B, Follet J, Adjou KT. Molecular characterization of Cryptosporidium isolates from diarrheal dairy calves in France. Vet Parasitol Reg Stud Reports 2019; 18:100323. [PMID: 31796198 PMCID: PMC7103931 DOI: 10.1016/j.vprsr.2019.100323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/13/2022]
Abstract
Cryptosporidium is an obligate intracellular protist parasite infecting a wide range of vertebrate hosts and causes significant intestinal disease in both animals and humans, as some species are zoonotic. Cattle and especially calves have been identified as one of the most common reservoirs of this protist. However, little is known about the genetics of Cryptosporidium in calves in some regions of France. The aim of this study was to detect and isolate Cryptosporidium spp. in faecal samples from naturally infected pre-weaned calves (≤45 days-old) in France. A total of 35 diarrhoeic pre-weaned calf faecal samples were collected from 26 dairy cattle farms in six departments (French administrative provinces). Cryptosporidium presence was established by microscopically screening samples for oocystes with an immunofluorescent (DFA) staining method. DFA-positive samples were then analysed by PCR-RFLP and 18S rRNA gene sequencing to determine species. Cryptosporidium parvum-positive samples were subtyped via nested PCR analysis of a partial fragment of the 60 kDa glycoprotein (gp60) gene product. Data were then integrated into phylogenetic tree analysis. DFA revealed the presence of Cryptosporidium oocysts in 31 out of 35 (88%) samples. Combined with 18S rRNA gene analysis results, C. parvum was detected in 30 samples. Subtyping analysis in 27/30 samples (90%) of the C. parvum isolates revealed two zoonotic subtype families, IIa (24/27) and IId (3/27). Four subtypes were recognised within the subtype family IIa, including the hypertransmissible IIaA15G2R1 subtype that is the most frequently reported worldwide (21/27), IIaA17G3R1 (1/27), IIaA17G1R1 (1/27), and IIaA19G1R1 (1/27). Two subtypes were recognised within the IId subtype family including IIdA22G1 (2/27) and IIdA27G1 (1/27). These findings illustrate the high occurrence of Cryptosporidium in calves in dairy herds and increase the diversity of molecularly characterised C. parvum isolates with the first description of IIaA17G3R1, IIaA19G1R1, and IId subtypes in France. The presence of zoonotic C. parvum subtype families (IIa, IId) in this study suggests that pre-weaned calves are likely to be a significant reservoir of zoonotic C. parvum, and highlights the importance of animal to human cryptosporidiosis transmission risk. Further molecular studies in calves and small ruminants from other French regions are required to better understand the epidemiology of cryptosporidiosis in France. Faecal samples from pre-weaned diarrheal calves were analysed Cryptosporidium spp. was detected in 30 samples out of 35. C. parvum was the only species identified Two zoonotic subtype families were identified: IIa and IId The hyper-transmissible IIaA15G2R1 was the dominant C. parvum subtype
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Affiliation(s)
- Mohamed Mammeri
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Maisons-Alfort F-94700, France; Phileo Lesaffre Animal Care, 137 rue Gabriel Péri, 59 700 Marcq-en-Barœul, France
| | - Aurélie Chevillot
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, Animal Health Laboratory, Maisons-Alfort F-94700, France
| | - Ilham Chenafi
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Maisons-Alfort F-94700, France
| | - Myriam Thomas
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, Animal Health Laboratory, Maisons-Alfort F-94700, France
| | - Christine Julien
- Phileo Lesaffre Animal Care, 137 rue Gabriel Péri, 59 700 Marcq-en-Barœul, France
| | - Isabelle Vallée
- UMR BIPAR, ANSES, Ecole Nationale Vétérinaire d'Alfort, INRA, Université Paris-Est, Animal Health Laboratory, Maisons-Alfort F-94700, France
| | - Bruno Polack
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Maisons-Alfort F-94700, France
| | - Jérôme Follet
- Université de Lille, CNRS, ISEN, UMR 8520-IEMN, Lille 59000, France; ISA-YNCREA Hauts de France, 59046 Lille Cedex, France
| | - Karim Tarik Adjou
- UMR BIPAR, Ecole Nationale Vétérinaire d'Alfort, ANSES, INRA, Université Paris-Est, Maisons-Alfort F-94700, France.
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Das P, Deka D, Borthakur SK, Roychoudhury P, Das M. Studies on occurrence, molecular detection and genotyping of Cryptosporidium parvum along with associated risk factors in cattle and human from Aizawl district, Mizoram, India. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1526501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- P. Das
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences & AH, CAU, Selesih Aizawl, Mizoram, India
| | - Devajani Deka
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences & AH, CAU, Selesih Aizawl, Mizoram, India
| | - S. K. Borthakur
- Department of Veterinary Parasitology, College of Veterinary Sciences & AH, CAU, Selesih Aizawl, Mizoram, India
| | - P. Roychoudhury
- Department of Veterinary Microbiology, College of Veterinary Sciences & AH, CAU, Selesih Aizawl, Mizoram, India
| | - M. Das
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences & AH, CAU, Selesih Aizawl, Mizoram, India
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Brar APS, Sood NK, Kaur P, Singla LD, Sandhu BS, Gupta K, Narang D, Singh CK, Chandra M. Periurban outbreaks of bovine calf scours in Northern India caused by Cryptosporidium in association with other enteropathogens. Epidemiol Infect 2017; 145:2717-26. [PMID: 28784188 DOI: 10.1017/S0950268817001224] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Bovine calf scours reported to be caused by multiple aetiologies resulting in heavy mortality in unweaned calves and huge economic loss to the dairy farmers. Among these, cryptosporidiosis is an emerging waterborne zoonoses and one of the important causes of neonatal calf diarrhoea. Poor immune response coupled with primary cryptosporidial infections predispose neonatal calves to multiple secondary infections resulting in their deaths. In the present study, faecal samples from 100 diarrhoeic calves randomly picked up out of 17 outbreaks of bovine calf diarrhoea in periurban Ludhiana, Punjab in Northern India were subjected to conventional (microscopy, modified Zeihl-Neelsen (mZN) staining) and immunological and molecular techniques (faecal antigen capture ELISA and PCR) for detection of primary Cryptosporidium parvum infection as well as other frequently reported concurrent pathogens, viz. rotavirus and coronavirus, Salmonella spp., Escherichia coli, Clostridium perfringens and Eimeria spp. The faecal antigen capture ELISA and PCR revealed 35% prevalence of C. parvum in contrast to 25% by mZN staining with a relatively higher prevalence (66·7%) in younger (8-14-day-old) calves. The detection rate of the other enteropathogens associated with C. parvum was 45·71% for C. perfringens followed by Salmonella spp (40·0%), rotavirus (36·0%), coronavirus (16·0%), E. coli (12·0%) and Eimeria spp (4·0%) The sensitivity for detection of C. parvum by ELISA and mZN staining in comparison to PCR was 97·14% and 72·72%, respectively. An important finding of the study was that C. parvum alone was found in only 10% of the diarrhoeic faecal samples, whereas, majority of the samples (90%) showed mixed infections ranging from a combination of two to five agents. This is the first documentary proof of C. parvum and associated pathogens responsible for severe periurban outbreaks of bovine calf diarrhoea culminating in heavy mortality from Northern India.
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Jenkins M, O'brien C, Fetterer R, Santin M. RT-PCR specific for Cryspovirus is a highly sensitive method for detecting Cryptosporidium parvum oocysts. Food Waterborne Parasitol 2016; 5:14-20. [DOI: 10.1016/j.fawpar.2015.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Inês EJ, Pacheco FT, Pinto MC, Mendes PS, Da Costa-Ribeiro H Jr, Soares NM, Teixeira MC. [Concordance between the zinc sulphate flotation and centrifugal sedimentation methods for the diagnosis of intestinal parasites]. Biomedica 2016; 36:519-24. [PMID: 27992978 DOI: 10.7705/biomedica.v36i4.2799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 04/10/2016] [Indexed: 11/21/2022]
Abstract
INTRODUCTION The diagnosis of intestinal parasitic infections depends on the parasite load, the specific gravity density of the parasite eggs, oocysts or cysts, and the density and viscosity of flotation or sedimentation medium where faeces are processed. OBJECTIVE To evaluate the concordance between zinc sulphate flotation and centrifugal sedimentation in the recovery of parasites in faecal samples of children. MATERIALS AND METHODS Faecal samples of 330 children from day care centers were evaluated by zinc sulphate flotation and centrifugal sedimentation techniques. The frequencies of detection of parasites by each method were determined and the agreement between the diagnostic techniques was evaluated using the kappa index, with 95% confidence intervals. RESULTS The faecal flotation in zinc sulphate diagnosed significantly more cases of Trichuris trichiura infection when compared to centrifugal sedimentation (39/330; 11.8% vs. 13/330; 3.9%, p<0.001), with low diagnostic concordance between methods (kappa=0.264; 95% CI: 0.102-0.427). Moreover, all positive samples for Enterobius vermicularis eggs (n=5) and Strongyloides stercoralis larvae (n=3) were diagnosed only by zinc sulphate. No statistical differences were observed between methods for protozoa identification. CONCLUSIONS The results showed that centrifugal flotation in zinc sulphate solution was significantly more likely to detect light helminths eggs such as those of T. trichiura and E. vermicularis in faeces than the centrifugal sedimentation process.
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Rekha KMH, Puttalakshmamma GC, D'Souza PE. Comparison of different diagnostic techniques for the detection of cryptosporidiosis in bovines. Vet World 2016; 9:211-5. [PMID: 27051211 PMCID: PMC4819375 DOI: 10.14202/vetworld.2016.211-215] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 12/28/2015] [Accepted: 01/08/2016] [Indexed: 12/03/2022] Open
Abstract
Aim: Aim of the present study was to compare different methods, viz., Sheather's sugar flotation (SSF), Ziehl-Neelsen (ZN), Kinyoun's acid-fast method (KAF), safranin-methylene blue staining (SMB), and negative staining techniques such as nigrosin staining, light green staining, and malachite green staining for the detection of Cryptosporidium spp. oocysts in bovines. Materials and Methods: A total of 455 fecal samples from bovines were collected from private, government farms and from the clinical cases presented to Department of Medicine, Veterinary College, Bengaluru. They were subjected for SSF, ZN, KAF, SMB and negative staining methods. Results: Out of 455 animal fecal samples screened 5.71% were found positive for Cryptosporidium spp. oocysts. The species were identified as Cryptosporidium parvum in calves and Cryptosporidium andersoni in adults based on the morphological characterization and micrometry of the oocysts. Conclusions: Of all the techniques, fecal flotation with sheather's was found to be more specific and sensitive method for the detection of Cryptosporidium spp. oocysts. Among the conventional staining methods, the SMB gives better differentiation between oocysts and yeast. Among the three negative staining methods, malachite green was found sensitive over the other methods.
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Affiliation(s)
- K M H Rekha
- Department of Animal Husbandary & Veterinary Services, Government of Karnataka, Muthur, Piriapatna, Mysore, Karnataka, India
| | - G C Puttalakshmamma
- Department of Parasitology, Veterinary College, Hebbal, Bengaluru, Karnataka, India
| | - Placid E D'Souza
- Department of Veterinary Parasitology, Veterinary College, Hassan, Karnataka, India
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Ghaffari S, Kalantari N. Recognition of Cryptosporidium oocysts in fresh and old stool samples: comparison of four techniques. Asian Pac J Trop Biomed 2014. [DOI: 10.12980/apjtb.4.2014apjtb-2014-0067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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