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

Answer 1

Answer: (B)

Four

• 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'.