The company said the vaccine produced a strong immune response in children younger than 6, but proved only about 40 percent effective in preventing symptomatic Covid-19.The company said the vaccine produced a strong immune response in children younger than 6, but proved only about 40 percent effective in preventing symptomatic Covid-19.Vaccination and Immunization, Clinical Trials, Coronavirus (2019-nCoV), Drugs (Pharmaceuticals), BioNTech SE, Centers for Disease Control and Prevention, Food and Drug Administration, Pfizer IncRead More
