The purpose of the study was to determine the prevalence of eukaryotic parasite eggs, larvae and cysts, as well as the number of helminth eggs or larvae per gram of dog faeces collected in the streets of the coastal towns of Niebla and Corral, in the south of Chile. The stool samples were processed by a combination of the qualitative methods of Modified Telemann and flotation with zinc sulphate solution, in addition to the quantitative method of Knight et al. (1972). The results showed that 85.1 and 92.3% of the samples were positive in Niebla and Corral, with no significant differences between localities. In both cities were identified eggs and larvae of Uncinaria stenocephala, Toxocara canis, Trichuris sp, Spirocerca sp, Capillariidae gen sp, and Taeniidae gen. sp, as well as oocysts of Cystoisospora canis and sporocysts of Sarcocystis sp, with the highest prevalence for U. stenocephal...

The purpose of this investigation was to determine the presence and prevalence of blastocystosis, a zoonosis caused by Blastocystis sp in free-range hens in homes of different localities in southern Chile, simultaneously verify human infection in at least one locality, and identify other infections by intestinal parasites in birds. Fresh fecal samples from hens and humans were collected and preserved in PAF fixative and processed by the PAFS method combined with a flotation phase with zinc sulfate solution. Blastocystis sp was detected in half of the homes and the average prevalence was 14.2% in the total of localities being greater in the rural area and in the locality of Teupa (p<0.05). The prevalence in humans was higher than in hens in the town of Ñancul (p<0.05), where the parasite was present in both hosts in 4 of 7 households. The prevalence of infection by Entamoeba gallin...

The purpose of this investigation was to determine the presence and prevalence of blastocystosis, a zoonosis caused by Blastocystis sp in free-range hens in homes of different localities in southern Chile, simultaneously verify human infection in at least one locality, and identify other infections by intestinal parasites in birds. Fresh fecal samples from hens and humans were collected and preserved in PAF fixative and processed by the PAFS method combined with a flotation phase with zinc sulfate solution. Blastocystis sp was detected in half of the homes and the average prevalence was 14.2% in the total of localities being greater in the rural area and in the locality of Teupa (p<0.05). The prevalence in humans was higher than in hens in the town of Ñancul (p<0.05), where the parasite was present in both hosts in 4 of 7 households. The prevalence of infection by Entamoeba gallin...