Hydroxychloroquine no better than placebo, Covid-19 study finds

Taking hydroxychloroquine does not protect people who have been close to someone with coronavirus from becoming infected, a study suggests.

Donald Trump told the world he was taking one pill a day to safeguard himself against the coronavirus, on the advice of his doctor. However, a study published in the New England Journal of Medicine suggests the drug is no more effective in protecting people exposed to the virus than a placebo.