Comments on: Sinovac says vaccine may be used on health workers, elderly even with just above 50% efficacy

Comments on: Sinovac says vaccine may be used on health workers, elderly even with just above 50% efficacy /194027/sinovac-says-vaccine-may-be-used-on-health-workers-elderly-even-with-just-above-50-efficacy Wed, 24 Feb 2021 10:32:54 +0800 hourly 1 https://wordpress.org/?v=6.5.5