National Influenza Vaccination Week 2025. National influenza vaccination week (nivw) is a national awareness week focused on highlighting the importance of influenza vaccination. National influenza vaccination week (nivw) is a critical opportunity to remind everyone 6 months and older that there's still time to protect.

During national influenza vaccination week, experts encourage everyone 6 months and older to get vaccinated to reduce risk of severe illness and hospitalization. According to this week’s fluview report, flu activity is increasing across.