Home / Ask The Experts / The package insert for VaxChora oral cholera vaccine states that effectiveness and safety have not been established for revaccination or for individuals with previous immunity. Does the CDC have any recommendations on revaccination or is one dose considered lifetime immunity at this time?

Scheduling Vaccines
Cholera

The package insert for VaxChora oral cholera vaccine states that effectiveness and safety have not been established for revaccination or for individuals with previous immunity. Does the CDC have any recommendations on revaccination or is one dose considered lifetime immunity at this time?

Immunity is not considered lifetime, however, CDC does not currently have any recommendation related to revaccination with oral cholera vaccine. The duration of immunity beyond the 3-month period of clinical trial evaluation in people age 18 through 45 years following one dose is unknown. As more information becomes available, CDC will update its recommendations accordingly.

Last reviewed: June 6, 2023

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This page was updated on June 6, 2023.