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Question
Which of the following is an example of live vaccine?
Which of the following is an example of live vaccine?
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Solution
The correct option is B BCG vaccine
Live vaccines are prepared from live (generally attenuated- the pathogen is made weakened to make it non-virulent) organisms. They will replicate in a vaccinated individual and produce an immune response but usually cause mild or no disease. For example, BCG (Bacillus Calmette-Guerin) vaccine for tuberculosis and vaccines for smallpox, yellow fever and influenza .So, the correct answer is 'BCG vaccine'.
Live vaccines are prepared from live (generally attenuated- the pathogen is made weakened to make it non-virulent) organisms. They will replicate in a vaccinated individual and produce an immune response but usually cause mild or no disease. For example, BCG (Bacillus Calmette-Guerin) vaccine for tuberculosis and vaccines for smallpox, yellow fever and influenza .
So, the correct answer is 'BCG vaccine'.
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