The World Health Organization (WHO) says 102 potential Covid-19 vaccines are in development around the world, according to documents posted on the organization’s website.

Eight of the potential vaccines are approved for clinical trials. That is up from seven vaccines four days ago. The additional group is from China, but it is unclear if they have started trials on human study subjects – the other seven have.

Of the groups approved for clinical trials on humans, four are from China, one is from England, one is American and another is a combined American and European group.

The American National Institutes of Health (NIH) trial was the first to start testing in human trial subjects on March 16.