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. 2010 Feb 10;28(6):1451-3.
doi: 10.1016/j.vaccine.2009.11.051. Epub 2009 Dec 8.

Duration of Vi antibodies in participants vaccinated with Typhim Vi (Typhoid Vi polysaccharide vaccine) in an area not endemic for typhoid fever

James E Froeschle  1 , Michael D Decker
Affiliations

Duration of Vi antibodies in participants vaccinated with Typhim Vi (Typhoid Vi polysaccharide vaccine) in an area not endemic for typhoid fever

James E Froeschle et al. Vaccine. .

Abstract

After a single injection of Typhim Vi (typhoid Vi polysaccharide vaccine), serum antibody concentrations were monitored for 3 years in 37 adults who resided where typhoid fever was not endemic. Anti-Vi antibody concentrations declined progressively during the study, to levels that support the current US recommendation for revaccination every 2 years.

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