When people viewed virtual avatars with coughs or rashes, their brains triggered an immune response. The brain activates ...

Seeing sick-looking faces in virtual reality triggers brain circuit changes related to threat detection and boosts activity of certain immune cells.

Study Human physiology is a complex system where several components coordinate to ensure smooth functioning. A team of ...

People infected with norovirus typically shed “literally billions of viral particles,” said Schaffner, the food safety expert. And it only takes a few viral particles to make someone sick.