25 March 2020 - India said on Wednesday it had banned the export of hydroxychloroquine and formulations of the malaria drug while experts test its efficacy in helping treat patients infected with coronavirus.

There are currently no approved treatments, or preventive vaccines for COVID-19, the highly contagious, sometimes deadly respiratory illness caused by coronavirus.

Researchers are studying existing treatments and working on experimental ones, but most current patients receive only supportive care such as breathing assistance.

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