Medically reviewed by Kate Colby, MPH The COVID-19 incubation period is the time between exposure to the SARS-CoV-2 virus and the onset of symptoms.Over 98% of people in the U.S. have some COVID-19 ...

The World Health Organization (WHO) on March 11 declared COVID-19 a pandemic, pointing to the over 118,000 cases of the coronavirus illness in over 110 countries and territories around the world and ...

Add Yahoo as a preferred source to see more of our stories on Google. As much as we want to put it behind us, COVID-19 isn’t going away. Cases are currently rising across the country in a summer surge ...

It's not easy to tell these health conditions apart based on their symptoms alone. Find out about the differences between these illnesses.

A dismantled health infrastructure leaves the U.S. incredibly vulnerable, warns infectious-disease expert Michael Osterholm.

A painful sore throat, often referred to as "razor blade throat", is just one of the symptoms of a new COVID-19 variant. This variant is currently being monitored by the World Health Organization.

With fall, and by extension, respiratory illness season, underway, COVID-19 cases have continued to fluctuate nationwide. Some regions of the United States are experiencing "very high" and "high" ...

COVID-19 vaccinations were shown to reduce virus-related hospitalizations and severe disease-associated outcomes in immunocompetent adults. The findings from a recently published JAMA Network Open ...

This is the time of year when updated boosters for COVID-19 are typically available. But this year has been anything but typical. Here’s a look at what we know about where to get the shot in Oregon ...

The U.S. Food and Drug Administration approved 2025-26 COVID-19 vaccines for anyone age 65 and older and any person 6 months and older who has at least one underlying health condition that increases ...

The FDA has approved updated COVID-19 vaccines but with new restrictions on eligibility. Emergency-use authorizations for COVID-19 vaccines have been terminated by the Health and Human Service ...