Three years after the start of the pandemic, it's still unclear if the coronavirus that causes the disease leaked from a lab or spread to humans from an animal.
A Montana lawmaker is worried about blood transfusions from people vaccinated against Covid-19 so he filed a bill to end donations from people who got the shot.
The Centers for Disease Control and Prevention (CDC) has made a major announcement regarding immunization schedules for children.On Thursday, the CDC released i