A common nasal spray may lower the risk of getting Covid-19, a new study shows. Dr. Leana Wen discusses what this all means ...

Amid the uncertainty surrounding eligibility for and access to the latest Covid-19 vaccine, a new study has found that a ...

Here's what to know about the latest COVID strain - and how to tell if your at-home test is still good to use.

A feasibility study in Germany found that concertgoers strongly supported medical detection dogs for COVID-19 screening, with ...