Detection of antibodies to Toxoplasma gondii among owned dogs in Cambodia

Toxoplasma gondii is a protozoan parasite belonging to the phylum Apicomplexa, which has a two-host life cycle and an extensive global distribution. The presence of antibodies to T. gondii was examined in owned dogs in Cambodia. In total, 103 dog serum samples from 37 households in northern Cambodia were collected and examined for evidence of T. gondii infection using an indirect immunofluorescent antibody test. In total, 52 of 103 (50.5%) samples were serologically positive for T. gondii in this study. No significant risk factor associated with T. gondii infection was found. To the best of our knowledge, this is the first report of the seroprevalence of T. gondii in dogs from Cambodia, which revealed a considerable risk of infection for humans. Therefore, consuming undercooked dog meat or contacting feces with contaminated cat feces should be restricted to avoid the possibility of zoonosis. Further studies are needed to determine the epidemiology of T. gondii in populations of larger dogs and other animals to improve our understanding of the situation of the pathogen in this country.