Add Yahoo as a preferred source to see more of our stories on Google. Can certain infections, such as COVID, leave you more vulnerable to getting another illness? (Getty Images) (Guido Mieth via Getty ...

Anthony Fauci privately acknowledged “impressive data” showed stronger immunity from a COVID-19 infection than vaccination ...

A new University of Manchester and Edinburgh study published in the journal Brain, Behavior and Immunity has found that ...

Vaccines are an important part of modern medicine, helping to build up a person's immunity and protect them from illness, ...

Scientists have made a discovery that helps explain why humans and animals are so susceptible to contracting tuberculosis (TB ...

The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new variants, a phenomenon often called immune imprinting. A new study shows ...

Bacteria can play established roles both as pathogens during infection but also as part of the host microbiota. The immune response to bacterial infection is a critical defence strategy protecting the ...

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 ...

Having a COVID-19 infection can shore up your immunity to the virus, but can it also leave you more susceptible to getting sick with other illnesses? That's the theory laid out in a new scientific ...