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Dr. Lalit Bajaj, MD, MPH, is Chief Quality and Outcomes Officer and a pediatric emergency medicine specialist at Children’s Hospital Colorado. Dr. Bajaj is overseeing the Pfizer clinical trial. Pfizer said on Monday a Phase 2/3 trial showed its Covid-19 vaccine was safe and generated a "robust" antibody response in children ages 5 to 11. These are the first such results released for this age group for a US Covid-19 vaccine, and the data has not yet been peer-reviewed or published. Pfizer said it plans to submit to the US Food and Drug Administration for emergency use authorization soon.