Covid vaccine: Is the Pfizer jab effective against Delta variant?
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Vaccine maker conducting studies on a prototype jab against future variants
Full ArticlePublished
Vaccine maker conducting studies on a prototype jab against future variants
Full ArticleWith the highly infectious Delta variant becoming dominant in South Africa, the health department says there is no data yet to..
Sub-Saharan Africa is in the grips of a third wave of COVID-19 infections that threatens to be even more brutal than the two that..