Question

Among the following,  how many vaccines have killed pathogens?                         

 B.C.G., Pertussis, Pneumonia, Rabies, TAB vaccine, Influenza.

A

Five

B

Four

C

Three

D

Two

Medium
Solution
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Correct option is B)

  • The BCG vaccine contains live bacteria that have been weakened (attenuated).
  • Killed (inactivated) vaccines are made from a protein or other small pieces taken from a virus or bacteria. Whooping cough (pertussis) vaccine is an example. 
  • Pneumococcal vaccine is inactivated or "killed" vaccines and does not contain any live organisms. 
  • The rabies vaccine is made from the killed rabies virus.
  • TAB vaccines and some influenza vaccines are live attenuated vaccines.
  • But some influenza vaccines are inactivated as well.

So the correct option is 'four'.

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