December 15, 2023
Vaccine Effectiveness Against Influenza A–Associated Hospitalization, Organ Failure, and Death: United States, 2022–2023 | SARS-CoV-2 Neutralizing Antibody Titers in Maternal Blood, Umbilical Cord Blood, and Breast Milk | Four Methods for Monitoring SARS-CoV-2 and Influenza A Virus Activity in Schools