Puerto Rico has recorded 13,696 influenza cases, 990 hospitalizations and 29 deaths so far in the 2026-2027 season, according to the Puerto Rico Health Department’s latest report. The agency noted that none of the 29 people who died had a registered flu vaccination. During the epidemiological week of October 11 to 17, 2,430 new cases were reported, 136 of which required hospitalization, or 5.6%.
Despite these figures, Health said virus activity remains below the warning and epidemic levels. Of the cumulative cases, 57.9% are concentrated between epidemiological weeks 38 and 41. Schools and other educational institutions are a main focus: 20 outbreaks were reported during the week evaluated, for a season total of 126.
Children are among the most affected, with 2,018 cases among children ages 0 to 4 and another 1,776 among ages 5 to 9. The Caguas and Metro regions have the highest cumulative case counts. On vaccination, the Health Department reported that 245,729 flu vaccines had been administered in Puerto Rico as of October 23.
The agency clarified that the statistics are preliminary and subject to revision, because epidemiological reports are published weekly with data from the previous week.