A key facet of the global 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 the US city of Miami, Leila Macor, took part in such a trial organised by Moderna, which announced on Monday that its experimental vaccine was nearly 95% effective.
Why did Ms Macor, who suffers from asthma, decide to be one of Moderna's 30,000 test subjects? Here, she recounts her experience, which began just weeks after her own father died of Covid-19 in Chile. A tough decision to take part Three weeks before Pfizer and Moderna launched their coronavirus vaccine clinical trials in late July, my father