Prevalence, genotyping and risk factors of Giardia duodenalis from dogs in Vietnam

• Published in: Journal of Veterinary Medical Science Vol. 80; no. 1; pp. 92 - 97
• Main Authors: NGUYEN, Sam Thi, FUKUDA, Yasuhiro, NGUYEN, Duc Tan, DAO, Ha Thanh, LE, Duc Quyet, BUI, Khanh Linh, TADA, Chika, NAKAI, Yutaka
• Format: Journal Article
• Language: English
• Published: Japan JAPANESE SOCIETY OF VETERINARY SCIENCE 01.01.2018; Japan Science and Technology Agency; The Japanese Society of Veterinary Science
• Subjects: Age Factors; Animals; Cysts; Cytoskeletal Proteins - genetics; dog; Dog Diseases - epidemiology; Dog Diseases - parasitology; Dogs; Feces - parasitology; Female; Females; Genotype; Genotypes; Genotyping; Giardia; Giardia - genetics; Giardia - isolation & purification; Giardia duodenalis; Giardiasis - epidemiology; Giardiasis - veterinary; Health risk assessment; Infections; Male; Males; Microscopy; Parasites; Parasitology; Prevalence; Protozoan Proteins - genetics; risk assessment; Risk Factors; Sequence Analysis, DNA; Sex Factors; Triose-phosphate isomerase; Triose-Phosphate Isomerase - genetics; Vietnam - epidemiology; Vietnam; risk assessment; Giardia; dog; genotyping
• ISSN: 0916-7250; 1347-7439
• DOI: 10.1292/jvms.17-0498

This study was carried out to determine the prevalence, genotypes/assemblages and possible risk factors associated with Giardia duodenalis infection in dogs in central Vietnam. A total of 209 dog fecal samples, randomly collected from private owned dogs (n=105) and dogs from stores (n=104), were examined for Giardia cysts by microscopy. Positive samples were genotyped by PCR-sequence analysis of β-giardin and triosephosphate isomerase genes markers. Risk factors were studied using a structured questionnaire and collected data were analyzed by univariate and multivariate logistic regression analyses. Results indicated that the overall infection rate was 8.6% (18/209) with the detected parasites were belonging to the non-zoonotic assemblages C and D. Age, gender and origin of animals were the main risk factors associated with G. duodenalis infection in dogs under study. Occurrence of infection was more likely in young animals compared to old ones and in females compared to males. Dogs originated from stores were more prone to Giardia infection compared to private owned counterparts.