What to do (and not to do) if a pesky one pops up.

A microscopic parasite is making thousands of Americans sick this summer, and public health officials are still figuring out ...

Ticks are small, and you might not notice when they bite, but the diseases they carry can dramatically harm your health ...

As wildfire smoke drifts across large parts of the U.S., the right air purifier can help reduce harmful particles indoors—if ...

With allergens like dust, dander, mold, and bacteria all teaming up to infiltrate the air you breathe, clean air is hard to ...

A produce-linked parasite that can cause uncomfortable (and at times dangerous) bouts of “explosive” diarrhea is causing ...

As gut health trends surge, from fiber-heavy diets to microbiome therapies, centuries-old fermentation is suddenly in the ...

When antibiotics attack microbes, their stressed neighbors ship them proteins to help them survive, new work suggests.

The beauty company Kao USA recalled its shampoo after detecting a potentially harmful bacteria. The shampoo was sold in ...

The human microbiome is essential to our health, but scientists have only begun to understand why. Two researchers set out to ...

Got a nasty stomach bug that won’t go away? It could be cyclosporiasis, a parasitic infection that causes weeks of ...