In the U.S., tap water is generally safe and not a likely source of brain-eating-amoeba infections, experts told Live Science.

Flu viruses that can use a second cellular entry point may move more effectively between animals and humans, scientists say.

Preliminary experiments suggest that a new test could diagnose bacterial infections that cause sepsis days faster than conventional approaches, with potentially lifesaving consequences.

Scientists uncovered a species of fungi that had never before been seen in humans. They say warmer temperatures could drive its evolution, for the worse.

Daily fluctuations in gut microbes may have a plethora of effects on the body, but many questions remain.

CRISPR is a versatile tool for editing genomes and has recently been approved as a gene therapy treatment for certain blood disorders.

Around 20% of cases of tuberculosis affect organs other than the lungs, and some can cause warty plaques on the skin.

A company that ships whole cucumbers from Florida has recalled potentially contaminated produce.

A woman kept mysteriously getting drunk despite not consuming alcohol. Turns out, a rare condition called "auto-brewery syndrome" was to blame.

Genes inherited from Denisovans, extinct human relatives, may help Papua New Guineans in the lowlands fight off infection, while mutations to red blood cells may help highlanders live at altitude.