Prevalence, genotyping and risk factors of <i>Giardia duodenalis</i> from dogs in Vietnam

Abstract

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.

Prevalence of Human Specific Giardia lamblia in Irish Sheltered Canines: An Unknown Risk Factor for Human Infection

“…Likewise, there was no significant association found between prevalence and age or animal category (stray/surrender). This was inconsistent with the previous studies that have found significantly higher prevalence among younger animals [18,14] and in surrendered dogs [7,21]. There was significant association between infection and both shelter identity (p=0.0006) and time in the shelter (p=0.0013).…”