When viruses invade a plant, you might expect an all-out immune war. But new research published in Science shows that, much like in humans, too strong an immune response can actually do more harm than ...

People living in regions where malaria outbreaks are common experience repeated exposure to the disease, which gradually teaches the body how to fight back. Over time, they develop naturally acquired ...

Sustained herd immunity against measles in Finland suggests that the measles-mumps-rubella (MMR) vaccine provides long-term protection against onward measles transmission, according to a new study ...