Flu Season 2025 Start Date Nz.  — normal weekly flu tracking would start earlier than usual this year with borders reopening, with esr expected to begin reporting rates within weeks. The flu vaccine is free for those who are most vulnerable to becoming very sick if they get the flu.

 — normal weekly flu tracking would start earlier than usual this year with borders reopening, with esr expected to begin reporting rates within weeks. Recommendation for seasonal influenza vaccines composition for new zealand for 2025.