COVID-19 is back, and how. With more than 4,000 cases in India and a few deaths, experts stress the need to get tested for ...

Why do you salivate a lot just before vomiting? And how do lemon juice and your rate of saliva production indicate whether ...

We are no longer required by law to quarantine or isolate when we have COVID-19. But Ms Baldwin says it is recommended. "Stay home and away from others when you have symptoms, irr ...

The doctor is in — the mailbox, that is. You can now do self-administered tests for everything from thyroid function to HIV ...

A new study shows how person-to-person variation in antibody immunity plays a key role in shaping which influenza (flu) strains dominate in a population.