Chile on Thursday became the latest country to limit use of the AstraZeneca coronavirus vaccine, linked to rare blood clots, when a 31-year-old man developed thrombosis […]
Forty years on since the first AIDS cases were reported, the United Nations said Thursday it was cautiously optimistic that the human immunodeficiency virus (HIV)—the virus […]
The World Health Organization’s top vaccines expert said Thursday that immunizing children against COVID-19 is not a high priority from a WHO perspective, given the extremely […]