The second phase of human trials is expected to start before the end of the current Iranian calendar year on March 20 and last through May [File: WANA via Reuters] Tehran, Iran – Iran has said its primary vaccine candidate against COVID-19 is 90 percent effective basedon preliminary results. Mohamad Reza Salehi, who heads clinical trials … Continue reading Iran: Results suggest primary COVID vaccine 90 percent effective Iran says its first locally manufactured vaccine has exhibited better-than-expected results in preliminary testing.