Robert F. Kennedy Jr., President Donald Trump’s nominee to head the US Department of Health and Human Services, told a US ...

almost a decade before Jonas Salk developed the first polio vaccine. Polio is a disease caused by the poliovirus. The ancient virus has three types: types 1, 2, and 3. Wild poliovirus types 2 and ...

A notice shared via the U.S. Citizenship and Immigration Services website notes immigrants will no longer be asked to show ...