COVID-19 vaccines weren’t developed in only a year, experts say
By Dana Sparks, Mayo Clinic News Network Troy Warren for CNT Today’s successes are the result of many years of coronavirus research Some people may be hesitant to be vaccinated for COVID-19 because they think COVID-19 vaccines were developed too quickly. But today’s successes are the result of many years of coronavirus research. “To say that these messenger RNA vaccines were only developed in the past year would be erroneous,” says Dr. Gregory Poland, an infectious diseases expert and head of Mayo Clinic’s Vaccine Research Group. “I know some people are hesitant, and they might be fearful over some of the…