Haryana Health Minister Anil Vij tested Covid-19 positive Saturday, more than 15 days after he was administered a trial dose of Bharat Biotech's Covid-19 vaccine candidate Covaxin.

The Serum Institute of India has responded to "malicious and misconceived" allegations by preparing a Rs100 crore defamation suit against a Covishield coronavirus vaccine trial participant who claimed to suffer a "virtual neurological breakdown" after being administered a dose, reports NDTV.

A coronavirus vaccine is still months or years away, but groups that peddle misinformation about immunizations are already taking aim, potentially eroding confidence in what could be humanity's best chance to defeat the virus.

After implementing social distancing measures for weeks, Britain has hit "the peak" of the COVID-19 outbreak, according to the country's Health Secretary Matt Hancock. But medical experts said only a valid vaccine or highly effective drugs can give people assurance that the fight against COVID-19 could be finally won.

The first participant in a clinical trial for a vaccine to protect against the new coronavirus will receive an experimental dose on Monday, according to a government official.