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Washington University School of Medicine in St. Louis

COVID-19: New Study Reveals How Long Protection From Pfizer, Moderna Vaccines Could Last COVID-19: New Study Reveals How Long Protection From Pfizer, Moderna Vaccines Could Last
Covid-19: New Study Reveals How Long Protection From Pfizer, Moderna Vaccines Could Last Claims that booster shots could be required in several months for those receiving the Moderna and Pfizer COVID-19 vaccine may have been overblown, according to new reports. New findings in a study published this week showed that both COVID-19 vaccines have shown a “persistent” immune response to the virus that could potentially last years. The last looming question is how effective the vaccines are against variants of the virus, specifically the more transmissible Delta strain that has become dominant in the US and is present in 49 states. Related story - COVID-19: Parts Of US With Low Va…