Flu Season Peaks in January — Why You Should Get Vaccinated Now

If you haven’t gotten your flu vaccine yet, don’t wait—now is the time. Flu activity often peaks in January, and health experts are urging Americans to protect themselves before the season ramps up.

The 2025–2026 flu vaccine has been updated to better match currently circulating strains, thanks to improved global surveillance and advanced manufacturing methods. While no vaccine offers total protection, flu shots significantly reduce the severity of illness and help prevent serious complications, such as pneumonia, especially among older adults and those with chronic health conditions.

This year’s vaccine targets the major influenza A strains (H3N2 and H1N1) and influenza B lineages predicted to dominate the season. The CDC continues to recommend annual vaccination for everyone aged 6 months and older.

For those who prefer to avoid needles, there’s good news: nasal spray flu vaccines are now approved for healthy, non-pregnant individuals ages 2 through 49. These sprays contain a weakened form of the live virus and are administered directly into the nostrils, stimulating an immune response similar to a natural infection—but without causing illness.

Nasal sprays are needle-free, kid-friendly, and widely available at pharmacies and clinics. However, they’re not recommended for people with certain health conditions, weakened immune systems, or those in close contact with immunocompromised individuals.

Whether you opt for the traditional shot or the newer spray, getting vaccinated now can help you stay healthy this winter—and keep you out of the doctor’s office when cases begin to spike.