All are true about SALK vaccine except-
OPV cannot be given as booster dose
Injections during epidemic can cause paralysis
Induces circulating antibody but no local immunity
Does not prevent multiplication of wild virus in gut
- salk polio vaccine is inactivated polio vaccine. - induce humoral immunity but not intestinal or local immunity. - for community, it does not offer protection because wild virus can still multiply in gut and be a source of iinfection to others. - not suitable for an epidemic. - one or two doses of OPV can be given safely as boosters after an initial immunisation with inactivated vaccine. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:206 <\p>
Communicable diseases