Coronavirus: Trump sticks by unproven hydroxychloroquine

US President Donald Trump has again defended the use of hydroxychloroquine to ward off coronavirus, contradicting his own public health officials.

He said the malaria medication was only rejected as a Covid-19 treatment because he had recommended its use.

His remarks come after Twitter banned his eldest son for posting a clip promoting hydroxychloroquine.

There is no evidence the drug can fight the virus, and regulators warn it may cause heart problems.

Last month, the US Food and Drug Administration (FDA) cautioned against using the drug to treat coronavirus patients,...