AAP argues that nonmedical vaccine exemptions "erode the safety of school environments" and limit the public health value of ...

Undocumented immigrants were at a sharply higher risk of death during the worst years of the COVID-19 pandemic, a finding ...

The WHO said B, C, and D subtypes cause 1.3 million deaths each year and that hepatitis D is now classified as carcinogenic to humans, alongside B and C.