WASHINGTON (AFP) – To find out whether experimental Covid-19 vaccines are safe and effective, researchers design clinical trials involving thousands of volunteers, divided into groups that receive either the drug under investigation or a placebo. Data from such trials have shown that two vaccines...
MIAMI (AFP) – A key facet of the global mad scramble by Pfizer, Moderna, and other pharma groups to develop a viable coronavirus vaccine is the recruitment of tens of thousands of volunteers willing to participate in clinical trials. AFP’s correspondent in Miami, Leila Macor, took part in such...