100-year-old vaccine could lower death rate in coronavirus cases

Scientists may have answered the question as to why developing countries are showing lower death rates to coronavirus than expected.

The findings have been published in the Proceedings of the National Academy of Sciences by Assistant Professor Luis Escobar of the College of Natural Resources and Environment. Escobar and two of his colleagues have suggested that the lower mortality rate may be a cause of BCG vaccinations (tuberculosis vaccine). "In our initial research, we found that countries with high rates of BCG vaccinations had lower rates of mortality" said Escobar.

The researchers examined mortality data of the coronavirus from multiple countries around the world, and after adjusting the model for income, access to education, health services, population size, and density they found a correlation between countries that have higher rates of BCG vaccinations and a lower peak COVID-19 mortality rate. Escobar says, "The purpose of using the BCG vaccine to protect from severe COVID-19 would be to stimulate a broad, innate, rapid-response immunity."

On top of this finding, Escobar notes that BCG vaccinations have been known to provide additional protection against other respiratory illnesses. If you are interested in reading any more on this study, you can check this link here.

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