Flu Season 2025 End Date. Trivalent influenza (flu) vaccines are designed to protect against three flu viruses. This letter sets out guidance for the 2024 to 2025 season and includes the next steps for regions and providers to take, including which flu vaccines to order.

Getting a yearly flu vaccination is the best way to prevent flu and its. New york’s weekly tally of flu cases topped 48,000 recently as hospitals braced for patient surges from a flu season that got a late start and could end later than prior years.