Prevalence of zoonotic potencial parasites in feces samples collected from public squares and beaches in São Lourenço do Sul, Rio Grande do Sul, Brazil / Prevalência de parasitos com potencial zoonótico em amostras fecais coletadas de praças e praias públicas de São Lourenço do Sul, Rio Grande do Sul, Brasil

In recent decades there has been a closer relationship between human beings and pets. Although this relationship is beneficial from several points of view, it also poses a risk to public health, as animals can transmit diseases to humans, called zoonoses. Among the main ones we can highlight the parasitic zoonoses, caused by helminths and protozoa, mainly transmitted via fecal-oral. Public squares and beaches are places with potential for the dissemination of parasitic zoonoses, as they are environments for mutual interaction between people and animals. The purpose of this study was to analyze the prevalence of parasites with zoonotic potential in samples of dog feces and sand collected from public squares and beaches in the municipality of São Lourenço do Sul, Rio Grande do Sul, Brazil. 204 samples of canine feces from the environment and 120 samples of sand were collected and submitted to coproparasitological techniques. Of the total, 57.84% of the fecal samples and 21.66% of the analyzed sand samples were contaminated with some parasitic genus. The contamination of the soil of public squares and beaches by parasites with zoonotic potential demonstrates that the population is at risk in these places, with the need to adopt sanitary measures to avoid human infection by zoonoses

Prevalence of eimeira spp. Oocysts in dairy properties in pelotas region in Rio Grande Do Sul, Brazil / Prevalência de oocistos de eimeira spp. Em propriedades leiteiras da região de pelotas no Rio Grande Do Sul, Brasil

The South of Brazil has been occupying the first place in the ranking of milk production in the country and Rio Grande do Sul annually produces a total of 4.5 billion liters, positioning itself as the fifth largest producer in the country. These numbers could be better, were it not for the economic losses due to mortality, low productive performance and expenses, due to diseases such as coccidiosis. Eimeria penetrates the intestinal cells, multiplies, causing local lesions that impair digestive processes reducing the absorption of nutrients. The work aimed to carry out an epidemiological, retrospective survey of the prevalence of oocysts of Eimeria spp. on small dairy farms located in Pelotas region of RS. The results were obtained in the database of diagnoses performed in the laboratory of the Study Group on Parasitic Diseases (GEEP), at the Federal University of Pelotas (UFPel). Results from 505 stool samples were used. Fecal samples were analyzed using the Gordon and Whitlock technique (1939) and the result expressed in oocysts per gram of feces. Of the analyzed samples, 54.65% (276/505) were positive for oocysts of this genus, with an average count of 545 oocysts per gram of feces. It is concluded that this protozoan has a high prevalence in dairy farms located in the Southern region of RS.

Frequência de ovos de toxocara spp. em amostras fecais recolhidas de praças públicas em Municípios do Rio Grande do Sul, Brasil / Frequency of eggs of toxocara spp. in fecal samples collected from public squares in Municipalities of Rio Grande do Sul, Brazil

Parasitos como Toxocara spp. são nematoides do trato gastrintestinal, que possuem como hospedeiro definitivo os cães, gatos e animais silvestres, sendo considerados causadores de uma zoonose. Nos seres humanos, hospedeiros acidentais, causa a doença conhecida como Larva Migrans Visceral (LMV). O objetivo do presente estudo é demostrar a frequência de ovos de Toxocara spp. em praças públicas das cidades de Jaguarão, Pedro Osório e Cerrito, localizadas no sul do Rio Grande do Sul. Foram coletadas mensalmente seis amostras fecais ambientais, em cinco praças municipais, de abril de 2017 a março de 2018, totalizando 12 meses de estudo. Para análise laboratorial foi utilizada a técnica coproparasitológica Willis-Mollay. Em Jaguarão (n = 144) foram coletadas fezes em duas praças (P1; P2) contatou-se 6,25% de frequência de ovos de Toxocara spp. (P1: 8,33%; P2: 4,16%). Nas cidades de Pedro Osório (n = 144) e Cerrito (n = 72), foram coletadas amostras ambientais em três praças (P1; P2/ P1), com frequência de 10,41% (P1: 9,72%; P2: 11,11%) e 9,72%, respectivamente. A frequência de amostras positivas para Toxocara spp. em todas as cidades foi de 8,61%. O estudo demonstrou que há presença de ovos de toxocarídeos nos ambientes estudados, caracterizando risco de saúde pública aos habitantes das cidades