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 ...

Results from a preclinical study in mice, led by EPFL, and a collaborative clinical study in patients show that the type 2 immune response – associated with parasitic infection and thought to play a ...

It's a question that scientists have been trying to answer since the start of the pandemic, one that is central to the rancorous political debates over coronavirus vaccine policies: How much immunity ...