July 2020, Vol 174, No. 7, Pages 633-736
Patterns of Influenza Vaccination and Vaccine Effectiveness Among Young US Children Who Receive Outpatient Care for Acute Respiratory Tract Illness
Jessie R. Chung, MPH; Brendan Flannery, PhD; Manjusha Gaglani, MBBS; et al.
JAMA Pediatr. 2020;174(7):705-713. doi:10.1001/jamapediatrics.2020.0372
This case-control study compares vaccine effectiveness against medically attended, laboratory-confirmed influenza in infants and children who received 1 vs 2 doses of influenza vaccine.