We May Get a Covid-19 Vaccine Very Soon. Here's All You Need to Know About Clinical Trials

Data from two trials have shown that two Covid-19 vaccines -- one developed by Pfizer and BioNtech, the other by Moderna and the US National Institutes of Health -- are about 95 percent effective. Here's a look at how clinical trials work.

from Top Buzz News- News18.com https://ift.tt/2KgW66C