Pfizer and BioNTech's Coronavirus Vaccine Candidate Produces Antibodies in People Up to 85 Years Old

In a phase 1 clinical trial, after receiving two doses of BNT162b2, participants in the 18 to 55 age range had levels of antibodies 3.8 times higher than those found in recovered patients. The 65- to 85-year-olds in the study didn't produce as many antibodies as the younger population, but their antibody levels were still 1.6 times those found in recovered patients.