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Influenza vaccine distribution

The distribution of influenza vaccines, including the use of multi-dose vials and single-dose prefilled syringes.

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Jan 29, 2026
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What vaccines worldwide still use thimerosal in multi‑dose vials as of 2026?

(thiomersal) remains used primarily as a preservative in multi‑dose vials of influenza (flu) vaccines worldwide, while routine childhood vaccines in high‑income countries have been reformulated to be ...