Some 16 states had "very high" levels of the virus present in wastewater during the week of Christmas, an increase from the week before.

The world first became aware of Covid-19 five years ago. We evaluate where we are, remember how we got here, and consider ...

Wastewater surveillance suggests that we in the midst of what's being called a "Silent" COVID-19 surge fueled by the XEC ...

A small study published Monday found that the COVID-19 antiviral treatment Paxlovid may have use as a treatment for long ...

Researchers have discovered that the SARS-CoV-2 spike protein persists in the brain and skull bone marrow for years after ...

Another year has gone by since the 2020 pandemic and COVID-19 remains at large, so experts weigh in on what will change in 2025.

It can take several weeks to bounce back after a bout of COVID-19, but some people develop more persistent problems. The ...

The 2024-2025 winter COVID-19 wave is hitting later than usual. Some experts are warning about a "silent" surge in cases this ...

Challenge trials help researchers study immune responses. Skeptics still doubt the approach is worth the risks ...

The following is a summary of “Four COVID-19 screening strategies for early case identification within the homeless shelter ...

COVID symptoms can be mild, severe, or nonexistent, according to the CDC—and can appear as late as two weeks after you’ve ...

Despite studying the SARS-CoV-2 virus for five years, scientists still have questions, from the extent to which it can ...