India's Covid-19 vaccine Covaxin races to get WHO approval

India's indigenous Covid-19 vaccine Covaxin has had a bumpy ride since it was approved in January for emergency use in the country before clinical trials were complete. In April, Brazilian health regulator Anvisa decided against the import of Covaxin - made by Bharat Biotech - after denying a certificate for good manufacturing practices for its plant. This month, it reportedly