Health Secretary Robert F. Kennedy Jr. recently announced more key changes to the CDC recommendations for COVID-19 ...

The coronavirus wastes no time ... Turns out, battling billions of tiny microbes is exhausting. “I felt like I got hit by a train,” Doug says. Fichtenbaum says the immune system was doing ...

As the coronavirus continues to cause illness and ... When you come in contact with viruses or bacteria, your body’s immune system makes antibodies to fight them off. A vaccine forces your ...