What do you get when you take an alien parasite and smush it together with a human being? Would you get to become a ...

A common parasite expands across species by abandoning sex, boosting short-term spread while risking long-term collapse.

Scientists have uncovered a hidden battle between a widespread brain parasite and the immune cells tasked with destroying it. A parasite that can quietly persist in the human brain is capable of ...

Vivian Nosovitsky told Newsweek the rare eye infection came from bacteria getting into her contact lenses, causing the ...