Toxoplasmagondii oocysts, Giardia cysts and Cryptosporidium oocysts in outdoor swimming pools in Brazil.

The accidental ingestion of treated recreational water is an important transmission route of waterborne protozoa worldwide. The present study aimed to provide the first evaluation of swimming pools in Brazil, analysing the presence of pathogenic protozoa (Toxoplasma gondii, Cryptosporidium spp. and Giardia spp.

Occurrence of zoonotic Enterocytozoon bieneusi in cats in Brazil.

Enterocytozoon bieneusi is an opportunistic intestinal pathogen that infects humans and a wide variety of animals worldwide. Our aim in this study was to investigate the occurrence of E. bieneusi in a domestic cat population in Campo Grande, Mato Grosso do Sul, Brazil.

Pre-ozonation of source water: Assessment of efficacy against Giardia duodenalis cysts and effects on natural organic matter.

The protozoan Giardia duodenalis is one of the parasites of primary concern in drinking water treatment plants, due to its resistance to chlorination. Another matter of concern regarding chlorination of drinking water is the formation of disinfection by-products in the presence of precursors such as natural organic matter (NOM). In this study, the effects of ozonation (5 mg L) on G.

Enterocytozoon bieneusi detected by molecular methods in raw sewage and treated effluent from a combined system in Brazil.

Background: Enterocytozoon bieneusi are the most common microsporidia associated with different clinical manifestations such as diarrhoea, respiratory tract inflammation and acalculous cholecystitis, especially in immunocompromised patients. Infection usually occurs by ingestion of food and water contaminated with spores, but can also result from direct contact with spores through broken skin, eye lesions, and sexual transmission, depending on the microsporidian species. Although there are reports of E.

Zoonotic Enterocytozoon bieneusi genotypes found in brazilian sheep.

The presence of Enterocytozoon bieneusi in sheep has been reported in only three countries worldwide. The present study has found E. bieneusi in Brazilian sheep for the first time; in 24/125 (19.

New findings of Enterocytozoon bieneusi in beef and dairy cattle in Brazil.

Microsporidia are widely recognized as important human pathogens with Enterocytozoon bieneusi as the most common species infecting humans and animals, including cattle. Although Brazil has the second largest cattle herd in the world and it is the largest exporter of beef there are no data on the presence or impact of E. bieneusi on this important population.

Molecular characterization of Cryptosporidium in Brazilian sheep.

Feces were collected from 125 sheep between January and December 2007, on ten farms in the State of Rio de Janeiro, Brazil, and examined for the presence of Cryptosporidium. Ninety samples were collected from lambs 2 to 6 months of age, and 35 were from sheep over 12 months of age. All samples were subjected to molecular analysis by polymerase chain reaction (nested PCR) in two steps of the SSU rRNA.