RIO DE JANEIRO, BRAZIL - In its most recent report on Friday, the World Health Organization (W.H.O.) announced that 165 vaccines are being developed. Of these, 26 are under clinical evaluation, that is, they have started human trials.
There are approximately 90,000 volunteers, for the time being, who will be administered the doses. Six of the vaccines are in their third and final phase. The remaining 139 are at an early stage of identifying the triggering agent and testing animals, such as mice.
Two of the vaccines at a more advanced stage have the participation of Brazilian institutions . . .