Coronavirus

WHO pauses coronavirus hydroxychloroquine trial over safety concerns

The World Health Organization said Monday that it will temporarily drop hydroxychloroquine — the malaria drug U.S. President Trump says he is taking — from its global study into experimental COVID-19 treatments, saying that its experts need to review all available evidence to date.

What was the Spanish flu?

Like the coronavirus that has forced many countries into lockdown, the Spanish flu had no vaccine.