In the midst of pandemic upheaval, researchers have gained fundamental insights about how the body fends off infections.
The CIA now believes the virus responsible for the COVID-19 pandemic most likely originated from a laboratory.
New director Ratcliffe releases a judgment Biden had kept secret.
The intelligence agency says it has a “low confidence” in its new finding, but this is further than it has ever gone in ...
Hospitalizations and deaths show how severe COVID-19 infections are. Wastewater and emergency room data show changes in COVID-19 spread in a community. Reported case numbers do not show all the ...