Researchers have analyzed drinking water and detected oocysts of Cryptosporidium and cysts of Giardia, two protozoa that cause outbreaks of diarrhea in humans. The levels detected are very low and do ...

A parasite is an organism that lives in or on an organism of another species. Three main classes of parasites can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa and ...

Supplementation with micronutrients, including vitamins, iron and zinc, is a key strategy to alleviate child malnutrition. However, association of gastrointestinal disorders with iron has led to ...

Obesity is a chronic disease whose pathogenesis has been related to changes in the intestinal microbiota. Yet, the role of protozoa and other unicellular eukaryotic parasites in this microenvironment ...

It’s fair to say parasites are generally bad for their hosts. Many cause disease and death so, like most species, we humans usually try to avoid infection at all costs. But it turns out that some ...