Approved on July 17, 2023, AstraZeneca and Sanofi’s Beyfortus (nirsevimab-alip) occupies a unique niche as a respiratory syncytial virus (RSV) F protein-directed fusion inhibitor for neonates and infants. With RSV rates surging, the drug quickly fell into a shortage. The CDC and FDA recently made available more than 77,000 additional doses of Beyfortus. Meanwhile, Senate…