– Manuscript – Drug companies Pfizer and BioNTech said Monday that three low-dose injections of their COVID-19 vaccine have shown to be effective in protecting children under age five. The companies made the announcement after carrying out new experiments, or trials, involving the youngest population group. They plan to provide information about the trials to the U.S. … [Read more...] about Pfizer: 3 Shots Effective Against COVID-19 in Children under 5