Scientists assert that BCG vaccinations have 'correlated with slower growth rates of Covid-19' in the first 30 days of the outbreak in countries where the vaccine is mandatory.In the early days of the pandemic, it was suggested that countries which gave the BCG vaccine to all newborns were faring better in keeping down Covid-19 infections. SA was one of them.
It asserts that mandatory countrywide BCG vaccinations until at least the year 2000 have “correlated with slower growth rates of Covid-19” in the first 30 days of the outbreak in that country and fewer deaths as a result. Past efforts, for example, “focused on the total number of infections and deaths, which have varied considerably among countries based on when the disease took hold”.
However, the authors cautioned that their results do not portray BCG as a “magic bullet” and even found substantial variation in Covid-19 growth rates among BCG-mandated countries. In SA, it was first used in the early 1950s, but Hussey said it was “sporadic” at that time and given to school-going children. This means if you were born in the 1940s or earlier, there is a small chance you were vaccinated, but it is not a given.
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