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Many observers of the coronavirus pandemic have been left startled comparing death rates in some of the most developed economies of the world, including Europe and the United States, with those being witnessed in the much less developed countries of South Asia and Africa – where the health systems are also fragile in contrast.
A preliminary study by researchers in New York, released on medRxiv – a site for unpublished medical research – argues there may be a link between countries that mandate the bacillus Calmette-Guerin (BCG) vaccine, also known as the TB vaccine, and lower mortality and morbidity rates.
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