Six years ago, on March 11, 2020, the World Health Organization declared COVID-19 a global pandemic. Here's what else happened on that day.

COVID-19 cases continue to climb week-over-week as summer draws to a close, according to U.S. health data. Some regions of the United States are experiencing higher rates of positive COVID-19 tests ...

The sting of skepticism when we hear about sniffles or cold symptoms in midsummer. Many of us chalk it up to myth. After all, cold and flu season lives squarely in winter—right? New CDC data shows ...