Pfizer officials announced that its COVID-19 vaccine is safe and effective for children ages 5 to 11.The news is a major development for children in school. It's a study that has been months in the making.>> Did You See? Pfizer says COVID-19 vaccine is safe and works in kids ages 5 to 11Dr. Dale Bratzler, OU Health's chief COVID-19 officer, spoke with KOCO 5 about how soon children could begin getting those shots."They've been studying it now for several months, and the results showed that kids are not likely to get infected after they have been vaccinated," Bratzler said.The big question is now what?"If they make a recommendation that emergency-use authorization be granted to Pfizer for children in this age group, then that goes to the full FDA," Bratzler said. "The FDA will make a decision, and then it will be reviewed by the CDC, their advisory committee on immunization practices.">> COVID-19 in Oklahoma: New cases, deaths, breakthrough cases, vaccination ratesKOCO 5 asked Bratzler how long it could be before children actually can start getting a COVID-19 vaccine."I think now that the FDA has received the data, the process will move relatively quickly," he said. "So, I think certainly by Halloween they could be through the process."Bratzler said the big question will be whether the FDA finds there is enough data and if enough children were studied to ensure it is safe.