If the high INDEXED shoot in Europe and the upward trends in new cases in Africa and Asia where is mostly like to start up the mass covid-19 vaccine trials
The initial trials of COVID-19 vaccines are already under way in Oxford, UK, China, Germany and United States.
Typically the people given such vaccines have been volunteers who have had no evidence of exposure to COVID-19 by testing them before use of vaccine.
However, initial questions are about safety, and then about efficacy. If successful (that may take at least ONE Year), such vaccines may become available for use in the susceptible populations e,g Africa, Asia, and other at high risk.
Latest updates: COVID-19 vaccine may be ready by October October 2020
Moderna (USA), Oxford group (UK), and Pfizer (Germany) have already done initial studies of COVID-19 vaccine in animals and small group of volunteers. Pfizer (1) and Oxford group with Astrazeneca (2) have announced that the vaccine could be available for use by October 2020 or end of this year. However, Moderna has encountered problems now (1).