What is the dosage of Vi capsular polysaccharide (ViCPS) antigen vaccine used in the prevention of typhoid fever (enteric fever)?

Updated: Aug 19, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Primary vaccination with ViCPS consists of a single parenteral dose of 0.5 mL (25 µg IM) one week before travel. The vaccine manufacturer does not recommend the vaccine for children younger than 2 years. Booster doses are needed every 2 years to maintain protection if continued or renewed exposure is expected.


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