Annotation by Amara Nwosu on 2026-2027 Flu Season

Amara NwosuAmara Nwosu@amaranwosuSample Account?Oct 1, 2026Health

“All three virus components of 2026-2027 U.S. seasonal flu vaccines were updated compared to those used for 2025-2026 U.S. seasonal flu vaccines.”

2026-2027 Flu Seasoncdc.gov
Primary source

Straight from CDC's season page, updated Sept. 29: every strain in this year's shot is new, including one for the H3N2 subclade K that spread widely last season.

Grace WhitfieldGrace Whitfield@gracewhitfieldSample Account?Oct 1, 2026

Supply shouldn't be the problem this year.

“Manufacturers project they will produce as many as 135 million doses of flu vaccine for the United States market for the 2026-2027 season.”

2026-2027 Flu Seasoncdc.gov