Pfizer and BioNTech pushed the pause button Friday on the process of authorizing its COVID-19 vaccine for the youngest children. The companies said in a release that they want to wait until data becomes available on a third vaccine dose for children under 5, likely in early April. They had originally said such data would become available in late March or early April and they would ask for vaccine authorization then. But under pressure from the Food and Drug Administration, the companies submitted their data and requested authorization for the first two doses, saying they could add a third in the future. Friday's news seems to reverse that and return to their earlier position. An FDA advisory committee was planned for Tuesday to consider the request, but has been canceled. No new date has been set. For the latest vaccine updates, click the link in our bio. #covid_19