(VOVWORLD) - As of Tuesday, there have been more than 233 million COVID-19 infections and 4.7 million deaths around the world, according to worldometers.info.
 A medical worker takes COVID-19 testing samples in Bangkok, Thailand. (Photo: AFP/VNA) |
The US company Pfizer announced that it has started clinical trials of the SARS-CoV-2 antiviral drug PF-07321332’s.
The primary objective is to assess the treatment’s safety and efficacy for the prevention of confirmed SARS-CoV-2 infection and its symptoms through Day 14.