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Introduction to Immunization

Immunization: Process of inducing immunity artificially by either vaccination (active immunization) or administration of antibody (Passive immunization)

 

Type of vaccines

  1. Live bacterial → BCG, Ty21a
  2. Killed bacterial  pertussis, typhoid
  3. Live, virus  OPV, MMR, Measles, yellow fever chicken pox.
  4. Killed virus  IPV, Rabies, HAV
  5. Toxoid  DT, TT
  6. Capsular polysaccharide  Typhoid Vi, Hib, Meningococcal, Pneumococcal
  7. Viral subunit  HbsAg
  8. Bacterial subunit  Acellular pertusis 

Immunization schedule

 

Age

National

Birth

BCG, OPV0

6 wk

DPT1, OPV1

10 wk

DPT2, OPV2

14 wk

DPT3, OPV3

9 month

Measles

15 month

-

18 month

DPT booster, OPV4

5 yrs

DT

10 yrs

TT

16 yrs

TT

Preg women

TT (2 doses at 4 wk internal)





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