Puerto Rico's influenza season is climbing toward its historical winter peak, and health officials used back-to-back briefings this week to press residents to get vaccinated now. Dr. Iris Cardona warned that weekly cases have pushed past 3,000, up from roughly 2,800 to 2,900 in recent weeks - on top of the 15,254 cases and 165 school outbreaks already accumulated between June and October.^[1][2]