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Moderna produces Covid-19 shot targeting variant discovered in SA The US biotech is preparing for a clinical trial to gauge the effectiveness of the vaccine on 501.V2 strain 25 February 2021 - 19:55 By Hannah Kuchler Moderna has become the first vaccine maker to produce a Covid-19 shot targeted at the virus variant discovered in SA. It will ship the doses to the US National Institutes of Health (NIH) for a clinical trial.  The Boston-based biotech is taking a three-pronged strategy to address concerns that its vaccine, with several others, is less effective against the 501.V2 str...

South Africa has recorded 4,000 cases of patients having contracted Covid-19 twice, probably caused by the local variant.

Health officials around the world gave their backing to the AstraZeneca vaccine after a study showing it had little effect against mild Covid-19 caused by the variant now spreading quickly in SA rang global alarms.

The emergence of new variants of the COVID-19 virus has raised concerns about their potential impacts on the efficacy of vaccines.

In the current study, the scientists engineered combinations of mutations found in these circulating variants and tested a panel of human sera from 20 participants