Boston-based Massachusetts General Hospital and London-based King’s College researchers used a COVID-19 symptom-checker app to predict with almost 80 percent accuracy whether a person is likely to ...

Social media posts have suggested that the contents of the vaccines for COVID-19 are not known, because the virus that causes the disease has not been isolated. This is not true. The virus that causes ...

A social media post has claimed that the virus that causes COVID-19 does not exist, that it cannot be tested for, and that the illness is actually just the flu. These claims are false. The post can be ...

As omicron becomes the dominant strain of COVID-19 in the United States, it’s become clear that the top symptoms associated with the strain aren’t the same as what’s been associated with COVID-19 for ...

CDC director warns low transmission is needed to keep schools open. After weeks of the Trump administration publicly demanding schools reopen, U.S. health officials this week pressed a new message for ...