vaccinated. cnn's jason carroll reports, we're still waiting for important details about when shots will go into these arms. >> reporter: it's information parents of younger children have been waiting for. pfizer sharing data that shows its vaccine is safe for 5 to 11-year-olds and elicits a robust antibody response. >> this is going to make a huge difference in the fight against covid-19 and parents, pediatricians and teachers are waiting for this. >> reporter: pfizer plans to submit its data to the fda for emergency use authorization as soon as possible. medical experts say if all goes well, the shot could be available for 5 to 11-year-olds by halloween. >> depending on how long the fda takes to review the application, whether it's a four-week review or six-week review, you could have a vaccine available to children as early as probably by the end of october. >> we know there are lots of cases in children but the risk of dying is still very, very low. >> while parents wait for the fda to look at the new pfizer