parasites

In 2017, a study reported one in three people in one rural Alabama county had been exposed to hookworm. Catherine Coleman Flowers says the study reveals big gaps in sanitation in rural America.

The World Health Organization had hoped to eradicate the painful parasite by 2020. That deadline just got moved a decade into the future. And dogs are part of the problem.

Tapeworms, hookworms, leeches. Millions of specimens. This collection has it all — except legs.

A man's worm treatment in Thailand led researchers to test parasites for inflammatory bowel disease. Their ultimate goal is a remedy that would mimic what the worms do — without an infection.

The Romans are famous for their baths, aqueducts and toilets. But the sanitary innovations might not have done as much to improve health as was once believed.

The mites that live on our faces may help reveal where our ancestors came from. It wouldn't be the first time that creepy crawlies have revealed something more than skin deep about the human past.