The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

Immunology has transformed humanity’s understanding of oneself and its battle against disease. Inflammation which is a primordial defense mechanism against pathogens, also acts as a double-edged sword ...

Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

Herd immunity is important because it defines when a whole community is protected. That includes people who haven't caught the disease, people who had the illness and recovered, and people who got a ...