Nation | by AFP
Washington,
US biotechnology firm Moderna on Monday said lab studies showed its Covid-19 vaccine would remain protective against variants of the coronavirus first identified in the United Kingdom and South Africa.
But out of caution, the company will test adding a second booster of its vaccine — to make three shots in total — and has begun preclinical studies on a booster specifically for the South African variant.
“We are encouraged by these new data, which reinforce our confidence that…
