A shocking new study shows that 90% of freshwater fish in Southern California may be carrying parasites that can infect ...

A microscopic parasite quietly infects the brains of millions worldwide. Known scientifically as Toxoplasma gondii, this tiny ...

Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm ...

Parasites live in other host organisms and depend on them for survival. Parasites that can affect humans include ticks, lice, and hookworms. Symptoms of a parasite infection in humans can vary ...

Moving from an animal host to humans. Transmission of parasites from one host to another can occur through several routes, depending on where the parasite resides in the host and how it is shed ...

Over 1,400 species of parasites -- viruses, bacteria, fungi, intestinal worms and protozoa -- are able to infect humans. In most cases, the right medicine against a parasite cures the patient. If ...

Parasites cause a wide variety of conditions in humans, bloating and daily burping often being the first symptom of a parasite infestation. Other symptoms include skin issues, gluten and lactose ...

Over 1,400 species of parasites – viruses, bacteria, fungi, intestinal worms and protozoa – are able to infect humans. In most cases, the right medicine against a parasite cures the patient.

Malaria parasites survive the mosquito-free dry season by waiting silently in humans for the return of the rainy season that brings back with it mosquitoes. New research, by an international team ...

Some gnarly eye parasites are accidental guests in the human body. For others, our peepers are prime real estate.

A stomach-churning viral video of an Oregon woman who describes removing cattle eyeworms from her eye has renewed interest in parasites that jump from animals to humans. Here’s all you need to know.