Certain live-attenuated vaccines can prevent severe complications of COVID-19

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Reviewed by Emily Henderson, B.Sc.Oct 15 2020
COVID-19 continues to wreak havoc globally, with over one million deaths to date. Yet what if an existing vaccine could make COVID-19 less deadly? A study just published put the theory to test, with promising results.

A research team led by Dr. Larenas-Linnemann working at Medica Sur, Mexico City, reported on their clinical observations in 255 subjects vaccinated with the mumps-measles-rubella (MMR) vaccine since the start of the Coronavirus disease-2019 (COVID-19) pandemic.

Many vaccinated patients were family members or caregivers of patients who already had contracted COVID-19, and thus at extremely high risk. Thirty-six of the patients have now contracted COVID-19, but all with a remarkably mild course, with less severe symptoms than would be expected given their health status and age.

The paper, published in the September issue of Allergy, the European Journal of Allergy and Immunology, is now available for free download.

MMR vaccination in the context of COVID-19, taking advantage of a measles outbreak

At the start of the COVID-19 pandemic, observing the highly contagious and virulent nature of the virus and the lack of available preventive measures, the investigators searched for methods to enhance innate immunity — in effect, give …

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