From The Conversation · Annette Regan · · 1m
Flu Season Guide
New mRNA flu vaccine available as flu activity rises.
In brief
New mRNA flu vaccine available as flu activity rises. The U.S. sees early flu activity with new mRNA vaccine options for adults 50+. Originally reported by The Conversation.
Flu activity rising
Flu activity began increasing across the United States near the end of September.
New mRNA vaccine option
The FDA approved mFLUSIVA, the first mRNA-based influenza vaccine for adults 50 and older.
Early flu season warning
Health authorities warn the 2026-27 flu season may start early in western U.S. regions.
Vaccination timing
Experts recommend getting flu vaccines by the end of October for best protection.
Vaccine options
Flu vaccines include nasal sprays for ages 2-49, higher dose options for seniors, and egg-free alternatives.
High-risk groups
People 65 and older, young children, pregnant people, and those with weakened immune systems need extra protection.
Vaccine effectiveness
This year’s vaccines were updated to better match expected flu viruses for 2026-27 season.
At a glance
The U.S. sees early flu activity with new mRNA vaccine options for adults 50+.
