It was recorded that cases with a low-intensity of GI infection showed polyparasitism (35.7%) associated with A. All feces collected from the parks contained eggs of intestinal parasites, most of them with a medium (42.9%) to high (35.7%) infection intensity, notably Ancylostoma caninum. The likelihood of being in the BCS 2 category was lower in areas with a higher density of dogs. A high proportion of dogs (72.3%) were found to be in good body condition score (BCS 3). The canine population was estimated between 65 and 80 thousand dogs, with a population density of 1,081 dogs/km 2, mostly males (71.4%). In the same way, dog feces from 14 public parks of the city were collected to determine the prevalence and intensity of infection with gastrointestinal parasites. The photographic capture-recapture method was used to estimate the density of dogs/km 2.

To assess the risk of zoonotic pathogen transmission as function of stray dog presence and health status, a cross-sectional study was carried out in a large city of southern Mexico that lacks comprehensive strategies for the control of stray canine populations.

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