Posted in Web Moderna Stock Pops After Its Covid Vaccine Generates … November 30, 2021 Moderna Stock: Pediatric Study Promising. In the study, the seroresponse rate was 99.3%. This means more than 99% of children tested had a fourfold increase in antibody levels after receiving the … https://www.investors.com/news/technology/moderna-stock-can-a-promising-covid-shot-test-in-children-refresh-shares/