Typhoid Vaccines – Facts, Images & Powerpoint

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Typhoid Vaccines are increasingly used by travellers to endemic areas. Here is a brief introduction to preparations available and their usage recommendations.

Heat killed phenol extracted whole cell vaccine.
a.Monovalent anti-typhoid vaccine
b.Bivalent anti-typhoid vaccine
c.TAB vaccine

Oral Typhoid Vaccine(Ty21a)
Live oral vaccine, a stable mutant of S.typhi strain

Typhim – Vi(ViCPS)
Contains Vi polysaccharide antigen, administered i.m or s.c

Vi-rEPA
Obtained by binding Vi polysaccharide to a non-toxic recombinant protein that is identical to pseudomonas aeruginosa exotoxin A.

Ty21a and ViCPS offer comparable one year efficacy to whole cell vaccines and have lower incidence of adverse effects making them preparation of choice for travellers.

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Typhoid , Vaccine Images:

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Typhoid Vaccination Current Needs – WHO

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