Epidemiological study of Giardia duodenalis infection in companion dogs from the metropolitan area of São Paulo Brazil

Abstract

Giardia duodenalis is a pathogenic gastrointestinal waterborne protozoan in domestic mammals and humans (Acha & Szyfres, 2003). The primary clinical symptoms associated with giardiasis in dogs are diarrhoea, vomiting and weight loss, but most of the infections are asymptomatic (Olson, Olson, & Wallis, 2002). The life cycle of G. duodenalis is direct: cysts eliminated in the faeces of the infected host contaminate the environment and water and may be ingested by a susceptible host or thru the faecal-oral route with host to host

Prevalence and genetic diversity of Giardia duodenalis in pet dogs from Zhengzhou, central China and the association between gut microbiota and fecal characteristics during infection

“…In our study, the detection rate of G. duodenalis in pet dogs mainly living indoors from Zhengzhou, central China, was similar to that reported in Brazil (6.9%)[ 28 ], and Poland (6.0%)[ 29 ]. However, it is lower than the prevalence of rural dogs in Argentina (44.4%)[ 30 ], and Italy (15%)[ 31 ].…”

Occurrence of gastrointestinal parasites in dogs and cats domiciliated in Santos, SP, Brazil

“…The worldwide prevalence rate of giardiasis in dogs and cats is 15.2% and 12.0%, respectively. However, the prevalence varies depending on the analyzed region, as recently demonstrated in a study conducted in the metropolitan area of São Paulo, where the prevalence of giardiasis among dogs in the city was only 6.9% (Chiebao et al, 2020). Hygiene conditions, together with the practice of parasite control by breeders, veterinarians, and tutor, directly influence the occurrence of the disease (Mohamed et al, 2013).…”

Comparison of the Efficiency of Diagnostic Tests Used to Prove Giardiasis in Terms of their Practicality and Use in the Veterinary Clinical Practice

“…The faeces are characterised by a strong smell and the presence of mucus; they should never contain blood [13]. Giardiasis is more frequently detected in dogs from shelters that in pet dogs; this is primarily caused by the poor hygiene conditions in shelters, a higher concentration of individuals at one place, shared enclosures and the subsequent contamination of the environment with faeces containing the infectious stages of parasites in shelters [12,16,17].…”