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By Dennis Thompson HealthDay ReporterTHURSDAY, April 30, 2026 (HealthDay News) — Nasal spray flu vaccines appear to work differently from traditional jabs, creating a battlefield in the nose for invading viruses, a new study says.
The FluMist vaccine… [3229 chars]
Source: U.S. News & World Report | Published: 2026-04-30T10:00:00Z
Credit: U.S. News & World Report
