We suggested several times (3/21/20, 6/23/20, 8/6/20, 10/18/20) that childhood vaccines may provide cross reactivity, and protection or partial protection against covid19, particularly the MMR and polio vaccine. Childhood vaccinations provide one explanation for why children do not get covid19, are asymptomatic, or are less severely affected. Vaccinations also explain why some countries have had a lower rate of covid19 and covid19 death—the countries that had mass vaccination programs for the MMR. Other scientists are now also reporting childhood vaccinations, including the MMR, may mitigate covid19.
People younger than 41 received the MMR vaccine, and people younger than 25 received two MMR vaccines. Doctors who treat children with severe covid19 inflammatory syndrome should obtain a history of vaccinations, including the MMR and polio vaccines, to determine if childhood vaccines provide a risk-prevention strategy. We were unable to find a report on the vaccination history in covid19 MIS-C children; and one report of the vaccination history in adults showed a reduction in the occurrence of covid-19 (see post 8/6/20).
While waiting for the elusive covid-19 vaccine, we should try using the vaccines we already have to help fight covid19—the MMR, the polio vaccine, and the influenza vaccine. Trials are just starting to determine the effect of the MMR vaccine in mitigating covid19 disease.
https://abqjournal-nm-app.newsmemory.com/?publink=02cc5874c
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