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YAMASAKI H, SUGIYAMA H, MORISHIMA Y, SAKO Y. Molecular identification of Spirometra infections in companion animals and wildlife in Japan. J Vet Med Sci 2024; 86:409-412. [PMID: 38447987 PMCID: PMC11061569 DOI: 10.1292/jvms.23-0475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/22/2024] [Indexed: 03/08/2024] Open
Abstract
Spirometra infections in companion animals and wildlife in Japan have been diagnosed based on the morphology of the adult worms and eggs, and the etiological agent has been mainly ascribed to Spirometra erinaceieuropaei. However, recent studies have revealed that two other species, Spirometra mansoni and Spirometra asiana, coexist in Japan. Spirometra asiana is a new species recently discovered in Japan. Although morphological discrimination between these two species is difficult, molecular identification is useful. Therefore, to understand which species commonly parasitizes companion animals and wildlife in Japan, a preliminary study was performed based on mitochondrial DNA analysis. Eleven adult worms examined were identified as S. mansoni, suggesting that S. mansoni infects companion animals and wildlife commonly than S. asiana in Japan.
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Affiliation(s)
- Hiroshi YAMASAKI
- Department of Parasitology, National Institute of Infectious
Diseases, Tokyo, Japan
| | - Hiromu SUGIYAMA
- Department of Parasitology, National Institute of Infectious
Diseases, Tokyo, Japan
| | - Yasuyuki MORISHIMA
- Department of Parasitology, National Institute of Infectious
Diseases, Tokyo, Japan
| | - Yasuhito SAKO
- Division of Parasitology, Department of Infectious Diseases,
Asahikawa Medical University, Hokkaido, Japan
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Sukupayo PR, Tamang S. Prevalence of Zoonotic Gastrointestinal Helminth Parasite among Dogs in Suryabinayak, Nepal. Vet Med Int 2023; 2023:3624593. [PMID: 37287959 PMCID: PMC10243950 DOI: 10.1155/2023/3624593] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/13/2023] [Accepted: 05/20/2023] [Indexed: 06/09/2023] Open
Abstract
Dogs are popular pets around the world and have always had a very close relationship with humans. Zoonotic gastrointestinal helminth parasites are a great threat to both stray and pet dogs. This study was carried out to determine the prevalence of zoonotic gastrointestinal helminths in dogs. 400 samples were collected, including 200 from pet dogs and 200 from stray dogs. The samples from pet dogs were collected from the ground immediately after voiding with the help of the owner, whereas stray dogs were caught by using a dog catcher, and the samples were collected directly from the rectum by using a gloved index finger. All collected samples were examined under a microscope using sedimentation and flotation techniques. The overall prevalence of infection was found to be 59.50%, with a significantly higher prevalence in stray dogs (70%) than that in pet dogs (49%). Ancylostoma spp., Toxocara spp., Trichuris spp., Capillaria spp., Dipylidium caninum, and Taenia/Echinococcus spp. were six different species found in the current study. The study showed the highest prevalence of Ancylostoma spp. (49.16%) and the least prevalence of Capillaria spp. (0.84%). In the age-wise study, puppies had a significantly high infection rate (86.96%). Similarly, we recorded a significantly higher prevalence of intestinal helminths among nondewormed pet dogs (78.65%) than among dewormed pet dogs (25.23%). This study highlights the severe environmental contamination shed by dogs, causing a higher risk of zoonotic transmission. It indicates the urgent need to manage these parasites in dogs and educate the public on how to care for their pets and the parasites they shed.
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Affiliation(s)
- Punya Ram Sukupayo
- Department of Zoology, Bhaktapur Multiple Campus, Tribhuvan University, Bhaktapur, Nepal
| | - Semsal Tamang
- Central Department of Zoology, Tribhuvan University, Kathmandu, Nepal
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Abbas I, El-Alfy ES, Janecek-Erfurth E, Strube C. Molecular characterization of Cysticercus tenuicollis isolates from sheep in the Nile Delta, Egypt and a review on Taenia hydatigena infections worldwide. Parasitology 2021; 148:913-933. [PMID: 33775267 PMCID: PMC11010137 DOI: 10.1017/s0031182021000536] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/23/2021] [Accepted: 03/21/2021] [Indexed: 11/07/2022]
Abstract
The predator–prey-transmitted cestode Taenia hydatigena infects a wide range of definitive and intermediate hosts all over the world. Domestic and sylvatic cycles of transmission are considered as well. The parasite has considerable economic importance, particularly in sheep. Here, the molecular characters of T. hydatigena cysticerci in sheep from the Nile Delta, Egypt were investigated for the first time. For this purpose, 200 sheep carcasses and their offal were inspected at the municipal abattoir, Dakahlia governorate, Egypt. Cysticerci of T. hydatigena were collected and molecularly characterized employing the mitochondrial 12S rRNA gene. Cysticerci were found in 42 (21%) sheep, mostly attached to the omenti, mesenteries and livers. After molecular confirmation, nine isolates were sequenced displaying six different haplotypes. Analysis of the T. hydatigena 12S rRNA nucleotide sequences deposited in GenBank revealed 55 haplotypes out of 69 isolates, displaying high haplotype (0.797) and low nucleotide (0.00739) diversities. For the Tajima D neutrality index, a negative value (−2.702) was determined, indicating the population expansion of the parasite. Additionally, global data summarized in this study should be useful to set up effective control strategies against this ubiquitous parasite.
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Affiliation(s)
- Ibrahim Abbas
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura35516, Egypt
| | - El-Sayed El-Alfy
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura35516, Egypt
| | - Elisabeth Janecek-Erfurth
- Institute for Parasitology, Center for Infection Medicine, University of Veterinary Medicine Hannover, Buenteweg 17, 30559Hanover, Germany
| | - Christina Strube
- Institute for Parasitology, Center for Infection Medicine, University of Veterinary Medicine Hannover, Buenteweg 17, 30559Hanover, Germany
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SIYADATPANAH A, GHOLAMI S, DARYANI A, SARVI S, SHARIF M, SEGUEL M, BOUNDENGA L, AMOUEI A, PAGHEH AS, RAHIMI MT, HOSSEINI SA, ANVARI D. The Prevalence of Intestinal Helminths in Free-Ranging Canids of Mazandaran, Northern Iran. IRANIAN JOURNAL OF PARASITOLOGY 2019; 14:563-571. [PMID: 32099559 PMCID: PMC7028244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The purpose of this study was to investigate the current knowledge on the epidemiology of importance zoonotic parasitic diseases in free-ranging canids of Mazandaran, north of Iran. METHODS Overall, 63 small intestinal samples of animals (20 stray dogs and 43 golden jackals) were collected from April 2017 to May 2018. The intestine contents were studied to detect and identify helminth infections. Additionally, 274 fecal samples (130 dogs, 35 fox, 90 golden jackal and 19 wolf) were examined by Sheather's flotation method for detection of Taenia eggs. RESULTS Sixty (95.2%) animals were infected with at least one species of intestinal helminth. the intestinal helminths were found in dogs and golden jackals included: Dipylidium caninum (25.3%), Uncinaria stenocephala (52.3%), Ancylostoma caninum (41.2%), Mesocestoides spp. (33.3%) and Toxocara canis (14.2%). In fecal examination, 2.5% of samples contained Taenia eggs, and through a species-specific PCR, 1.09% of these samples were confirmed positive for Echinococcus granulosus. CONCLUSION There is a high prevalence and clear risks of zoonotic helminths in free-ranging carnivores in Mazandaran province, north of Iran. Therefore, understanding the epidemiology of zoonotic parasite infection is useful for health care access both domestic animals and humans health.
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Affiliation(s)
- Abolghasem SIYADATPANAH
- Ferdows Paramedical School, Birjand University of Medical Sciences, Birjand, Iran, Student Research Committee, Department of Parasitology, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shirzad GHOLAMI
- Department of Parasitology, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmad DARYANI
- Department of Parasitology, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahabeddin SARVI
- Department of Parasitology, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehdi SHARIF
- Department of Parasitology, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mauricio SEGUEL
- Odum School of Ecology, University of Georgia, Athens, GA, USA
| | - Larson BOUNDENGA
- Department of Medical Parasitology, Group Evolution and Interspecies Transmission of Parasites, International Centre for Medical Research, Franceville (CIRMF), Franceville, Gabon
| | - Afsaneh AMOUEI
- Student Research Committee, Department of Parasitology, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abdol Sattar PAGHEH
- Student Research Committee, Department of Parasitology, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Taghi RAHIMI
- Department of Parasitology, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Seyed Abdollah HOSSEINI
- Department of Parasitology, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Davood ANVARI
- Student Research Committee, Department of Parasitology, Mazandaran University of Medical Sciences, Sari, Iran, School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran,Correspondence
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Al-Jassim KBN, Mahmmod YS, Salem ZM, Al-Jubury A. Epidemiological investigation of gastrointestinal parasites in dog populations in Basra province, Southern Iraq. J Parasit Dis 2017; 41:1006-1013. [PMID: 29114134 DOI: 10.1007/s12639-017-0926-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/12/2017] [Indexed: 10/19/2022] Open
Abstract
The understanding of the epidemiology of canine parasitic infections is necessary for an efficient control program to minimize the risk of zoonotic transmission. The objectives of this study were (1) to determine the prevalence of canine gastrointestinal helminths and protozoa in Basra province, Southern Iraq, and (2) to identify the association of epidemiological characteristics (age, breed, gender, and feed type) of dogs with the parasitic infections. A total of 93 fecal samples, collected in the period from December 2014 to June 2015, were examined macroscopically and microscopically for the presence of worm eggs and protozoal oocysts, using centrifugal flotation method. The overall prevalence of infected dogs was 77.4% (72/93). About 54.8% (51/93) dogs were infected with more than one genus of parasites. The prevalence of multiple infections with two, three, and four parasites was 30.1% (28/93), 22.6% (21/93), and 2.2% (2/93), respectively. The most frequently detected parasites were Toxocara canis (62.4%, 58/93), Physaloptera spp. (28%, 26/93), Alaria spp. (26.9%, 25/93), Trichuris vulpis (9.7%, 9/93), and Ancylostoma caninum (7.5%, 7/93). Isospora canis (6.5%, 6/93) and Giardia spp. (4.3%, 4/93) were the only protozoan parasites identified in this study. Toxocara canis infection was significantly associated with sex and age of the dogs (P < 0.05). Feeding type was significantly associated with the occurrence of T. canis (P < 0.0001), A. caninum (P < 0.03) and Alaria spp. (P < 0.02). The high prevalence of intestinal helminths in dog's population suggesting the need for more efficient control measures. The high prevalence of T. canis, T. vulpis, A. caninum and Giardia spp. suggested that dogs could play an active role in the transmission of zoonotic parasites in this area of Iraq. Educating the dog owners and increasing their health awareness should be considered in the control program. The results of the present study provide relevant "base-line" data for assessing the effectiveness of future control strategies against canine parasitic infections.
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Affiliation(s)
- Khawla B N Al-Jassim
- Central Animal Laboratory of Basra, Veterinary Hospital, Basra, 61004 Basra Province Iraq
| | - Yasser S Mahmmod
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
- Infectious Diseases, Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig City, Sharkia Province 44511 Egypt
| | - Zainab M Salem
- Central Animal Laboratory of Basra, Veterinary Hospital, Basra, 61004 Basra Province Iraq
| | - Azmi Al-Jubury
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
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Amissah-Reynolds PK, Monney I, Adowah LM, Agyemang SO. Prevalence of Helminths in Dogs and Owners' Awareness of Zoonotic Diseases in Mampong, Ashanti, Ghana. J Parasitol Res 2016; 2016:1715924. [PMID: 26941994 PMCID: PMC4752992 DOI: 10.1155/2016/1715924] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/06/2016] [Indexed: 11/23/2022] Open
Abstract
Dogs are popular pets that live closely with humans. However, this cohabitation allows for the transmission of zoonotic parasites to humans. In Ghana, very little is known about zoonotic parasites in dogs. We examined excrements of 154 dogs for intestinal helminthes using saturated sodium chloride as a floatation medium and further interviewed 100 dog owners regarding knowledge on zoonosis and pet management practices. Thirteen parasite species were identified, with an overall prevalence of 52.6%. Nematodes were more common than cestodes, with Toxocara canis being the most prevalent helminth (18.8%). Age (p = 0.011; χ (2) = 9.034) and location (p = 0.02; χ (2) = 12.323) of dogs were significant risk factors of helminthic infections, while mode of housing, function, and gender of dogs were not. Knowledge on zoonosis and pet management practices were poor, including irregular deworming and feeding of animals off the bare ground. Dogs may play an active role in the transmission of zoonotic diseases in the area, given the cohabitation of infected dogs with humans; irregular deworming pattern of dogs; and rampant excretion of helminth-infested dog excreta into the environment.
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Affiliation(s)
- Papa Kofi Amissah-Reynolds
- Department of Science Education, University of Education, Winneba, P.O. Box M40, Mampong, Ashanti, Ghana
| | - Isaac Monney
- Department of Environmental Health and Sanitation Education, University of Education, Winneba, P.O. Box M40, Mampong, Ashanti, Ghana
| | - Lucy Mawusi Adowah
- Department of Science Education, University of Education, Winneba, P.O. Box M40, Mampong, Ashanti, Ghana
| | - Samuel Opoku Agyemang
- Department of Science Education, University of Education, Winneba, P.O. Box M40, Mampong, Ashanti, Ghana
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Torres-Chablé OM, García-Herrera RA, Hernández-Hernández M, Peralta-Torres JA, Ojeda-Robertos NF, Blitvich BJ, Baak-Baak CM, García-Rejón JE, Machain-Wiliams CI. Prevalence of gastrointestinal parasites in domestic dogs in Tabasco, southeastern Mexico. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA 2015; 24:432-7. [DOI: 10.1590/s1984-29612015077] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 10/05/2015] [Indexed: 11/21/2022]
Abstract
Abstract The overall goal of this study was to estimate the prevalence of gastrointestinal (GI) parasites in dogs in the city of Villahermosa in Tabasco, Mexico. The study population consisted of 302 owned dogs that had limited access to public areas. A fecal sample was collected from each animal and examined for GI parasites by conventional macroscopic analysis and centrifugal flotation. Fecal samples from 80 (26.5%) dogs contained GI parasites. Of these, 58 (19.2%) were positive for helminths and 22 (7.3%) were positive for protozoan parasites. At least seven parasitic species were identified. The most common parasite was Ancylostoma caninum which was detected in 48 (15.9%) dogs. Other parasites detected on multiple occasions were Cystoisospora spp. (n = 19), Toxocara canis (n = 7) and Giardia spp. (n = 3). Three additional parasites, Dipylidium caninum, Trichuris vulpis and Uncinaria spp., were each detected in a single dog. No mixed parasitic infections were identified. In summary, we report a moderately high prevalence of GI parasites in owned dogs in Villahermosa, Tabasco. Several parasitic species identified in this study are recognized zoonotic pathogens which illustrates the important need to routinely monitor and treat dogs that live in close proximity to humans for parasitic infections.
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Awadallah MAI, Salem LMA. Zoonotic enteric parasites transmitted from dogs in Egypt with special concern to Toxocara canis infection. Vet World 2015; 8:946-57. [PMID: 27047182 PMCID: PMC4774761 DOI: 10.14202/vetworld.2015.946-957] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 07/06/2015] [Accepted: 07/11/2015] [Indexed: 11/16/2022] Open
Abstract
AIM This work aimed to study the role played by dogs in transmitting zoonotic enteric parasites to humans in Egypt and to analyze the risk factors associated with the occurrence of such infection in dogs. Serodiagnosis of anti-Toxocara immunoglobulin G (IgG) antibodies among human beings as well as analyzing risk factors predispose to Toxocara canis infection in human beings are another objectives of this study. MATERIALS AND METHODS From June to December 2013, a total of 130 fecal samples from 4 dog populations (Military, nomadic and domiciled dogs from rural and high standard districts) and 150 stool samples of 6 occupational groups were examined for the presence of enteric parasitic infection. Moreover, 150 serum samples were collected from humans from whom stool samples were collected and examined for the presence of anti-T. canis antibodies. RESULTS Enteric parasites were detected in 30% of fecal samples from 4 dog populations in Egypt. High infectivity had been reported in nomadic dogs (63.33%) (Crude odds ratios [COR]=67.36, 95% confidence interval [CI]=8.09-560.8, p<0.000), followed by domiciled dogs from rural areas (40%) (COR=26, 95% CI=3.14-215.54, p=0.003), domiciled dogs from high standard areas (23.33%) (COR=11.87, 95% CI=1.37-102.69, p=0.025) and military dogs (2.5%). Twelve species of enteric parasites were identified, Ancylostomatidae (6.15%), T. canis and Cryptosporidium spp. (5.38%, each), Heterophyes spp. (3.85%), Toxocara leonina and Blastocystis spp. (3.07%), Taenidae eggs (2.31%), Hymenolepis diminuta (1.54%) and Entamoeba canis, Cyclospora cayetanensis, and Paragonimus spp. (0.77%, each). Univariate logestic regression revealed significant association of age (COR=4.73, 95% CI=2.13-10.53, p<0.000), gender (COR=2.63, 95% CI=1.22-5.68, p<0.014), housing system (COR=5.10, 95% CI=2.04-12.75), p<0.000) with enteric parasitic infection in dogs. However, breeds (COR=6.91, 95% CI=0.88-54.52, p=0.067) and type of feeding (COR ranged from 3.5 to 7.62, p>0.05) did not seem to have a significant association among the examined dogs. Enteric parasitic infection was reported in 31/150 human stools (20.67%). Students were the most affected groups (37.14%), followed by nomadic people (24%), house wives (20%), house guarders and military workers (12%, each), and employees (10%). The identified parasites were Cryptosporidium spp. (9.33%), Ascaris lumbercoides (3.33%), Heterophyes spp. and Ancylostoma spp. (2.66%, each) and Paragonimus spp. and Hymenolepis nana (1.33%, each). Toxocara IgG antibodies were detected in 36/150 (24%) serum samples investigated. Toxocara IgG antibodies were more prevalent in males (26.66%) than females (20%). Seroprevalence was highest (17/35, 48.57%) in 7-15 years old (COR=6.93, 95% CI=1.75-27.43, p=0.006). Seroprevalence values for T. canis antibodies were higher in those; raising dogs (29.85%), eating raw vegetables (25.21%) and not washing hands before meals (25.45%). T. canis antibodies were detected in 25% of those contacted with soil compared to 30% of those did not. Students were mostly affected (34.29%), followed by nomadic people (32%), house guarders (28%), housewives (20%), military workers (13%), and employees (10%). CONCLUSION Detection of enteric parasites in dogs and humans in Egypt substantiates the role posed by dogs in transmitting zoonotic parasites to humans and knock an alarm for common sources of infection for humans and dogs. Common sources may be infected fish or contaminated vegetables that are consumed by dogs or humans or even infected rodents that may contaminate their feed. This pilot study necessitate the need for similar studies and tracing such infection in fish, vegetables, rodent that may be responsible for infecting humans and dogs in order to understand the epidemiology of zoonotic parasitic infection transmitted from dogs to humans.
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Affiliation(s)
- Maysa A I Awadallah
- Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Lobna M A Salem
- Department of Zoonoses, Faculty of Veterinary Medicine, Benha University, Benha 13518, Egypt
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Epidemiological assessment of intestinal parasitic infections in dogs at animal shelter in Veracruz, Mexico. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/s2221-1691(15)30167-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Evaluation of faecal flotation methods followed by species-specific PCR for detection of Echinococcus multilocularis in the definitive hosts. Acta Parasitol 2014; 59:331-6. [PMID: 24827107 DOI: 10.2478/s11686-014-0248-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 02/10/2014] [Accepted: 03/18/2014] [Indexed: 12/28/2022]
Abstract
Echinococcus multilocularis is one of the most pathogenic zoonotic parasites in the temperate and arctic region of the Northern Hemisphere. For estimating the potential risk of human infection in endemic areas, reliable antemortem methods are needed to detect the parasite in carnivore definitive hosts. The sensitivity of routine flotation techniques for detection of E. multilocularis eggs was found to be low (3-33%) depending on the flotation solution used (specific gravities = 1.3-1.4). An improved faecal flotation followed by a species-specific PCR is described with a sensitivity of 74% (95% CI = 62-84%) and a specificity of 100% (95% CI = 94-100%). These parameters are similar to those of the intestinal scraping technique (sensitivity = 78%, specificity = 100%). The sensitivity of the improved flotation was significantly higher (P < 0.0001) than that of routine flotation techniques. The costs of the method are similar or lower than those of other antemortem diagnostic methods. Based on these data, the method is suitable for surveys of domesticated and wild carnivores.
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