AdvertisementUp Against Mutants, WHO Says AstraZeneca Vaccine Is Still A Good BetFebruary 10, 2021Jason BeaubienfacebookEmailA vial of the AstraZeneca COVID-19 vaccine. A small study in South Africa has raised concerns about its effectiveness, but the World Health Organization has now stated: "Even if there is a possibility that this vaccine has a reduction in efficacy, we see no reason not to use it, even in countries with variants." (AFP via Getty Images)