# Flu Season Guide

> New mRNA flu vaccine available as flu activity rises.
- Title: Flu Season Guide · The Conversation | Shortify
- Summary: New mRNA flu vaccine available as flu activity rises. The U.S. sees early flu activity with new mRNA vaccine options for adults 50+.
- Keywords: mflusiva, mrna vaccines, flu season, 2026-27 flu season, cdc, flu vaccine, influenza, respiratory viruses, vaccines, seasonal patterns, flu activity, mrna-based vaccine
- Source: The Conversation — https://theconversation.com/flu-season-is-near-heres-a-guide-to-available-vaccines-293480
- Author: Annette Regan
- Read time: 1 min
- Topics: mflusiva, mrna vaccines, flu season, 2026-27 flu season, cdc, flu vaccine, influenza, respiratory viruses, vaccines, seasonal patterns, flu activity, mrna-based vaccine
## 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.
## Key takeaway

The U.S. sees early flu activity with new mRNA vaccine options for adults 50+.