BCG vaccine a protection against COVID-19, study suggests

COLOMBO (News1st): As the world looks for answers to battle Covid-19, a new scientific study is offering an explanation as to why the virus seems to spread rapidly in some countries and not in others. Why has Spain had nearly 15,000 deaths from the corona-virus pandemic while Portugal’s death toll is less than 500? Such […]

BCG vaccine a protection against COVID-19, study suggests

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