Vaccines are among the greatest achievements in medical science, saving millions of lives every year. They protect individuals and entire communities from infectious diseases such as measles, polio, ...

All cellular life—from humans to bacteria—possesses two layers of immunity: innate and adaptive. Scientists have long understood how these two types of immunity work together in higher organisms but ...

More and more routine vaccines are being linked to lower risks of dementia. Shots against seasonal flu, RSV, tetanus, diphtheria, and pertussis (Tdap), pneumococcal infections, hepatitis A and B, and ...