Giardia lamblia is a commonly identified intestinal pathogen protozoan in humans in
Serbia, since 8.0% of the children are infected in Belgrade area. In light of the zoonotic potential
of
Giardia infection, a total of 167 dogs were examined for giardiasis in the same urban area. Six
of 81 dogs (7.4%) from urban homes, 14 of 75 dogs (18.6%) from the pound, and four of 11 dogs
(36.4%) from the farm were excreting
Giardia cysts. Thus, the overall prevalence of infection in
dogs in the Belgrade area was 14.4%. Of six household pets excreting
Giardia, five owners and
all 16 of their family members were
Giardia-negative, while in case of one dog both the owner
and the only other family member were
Giardia- positive. The data demonstrate that a potential
animal reservoir exists in urban Serbia and underline the possibility of transmission between dog
and human in close contact, thus having important implications for the epidemiology of giardiasis
in urban areas.
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