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Index/Topics/Global vaccine access

Global vaccine access

The challenges of accessing vaccines in low-resource settings, including the use of multi-dose vials with preservatives like thimerosal.

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Jan 26, 2026
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Do any vaccines still contain mercury-based preservatives today?

A mercury-containing called (also spelled thiomersal) has been removed from most routine childhood vaccines since the early 2000s, but until recently it remained in a subset of multi-dose influenza va...