Parasites

An outbreak of the intestinal illness cyclosporiasis has sickened more than 200 people in four states, according to the Centers for Disease Control and Prevention.

A microorganism found in cat poo is more widespread than people thought. The parasite has been linked to problems such as schizophrenia, bipolar disorder and kids' trouble in school.

Researcher Paul Sikkel studies reef parasites and their impact on fish at the reef.

A fossil flea unearthed in China could shed light on why fleas evolved to become smaller over history

Sometimes the family pet can make its owner ill.

Protect yourself from ticks this summer to avoid contracting babesiosis.

A neglected tropical disease bears similarities to HIV/AIDS, researchers argue.

It has to do with a toxic protein that some people have in their gut mucus.

Even ants, butterflies and fruit flies can self-medicate.

Could it explain the love of cats?

A new analysis of genetic changes in the blood-sucking parasites can reveal how people migrated across the globe

New research shows that the secret to blood fluke's long life cycle could be stem cells that allow it to keep regenerating its body parts.

Immune cells provide free rides for invading parasites.

The finding may explain why people with this STD are more vulnerable to HIV and even infertility.

Women's preferences don't fit popular theory.

The raw fish and rice in sushi require careful preparation for safe eating.

Paul Sikkel explores the ecological importance of marine parasites in coral reef communities.

The parasitic wasps attack the butterfly eggs to keep the plants safe.