What could be the probable reason for Sukriti not being affected by the pathogen of this disease?
(A)Sukriti's immune system has already encountered the weakened pathogens, and developed memory cells, which produce antibodies whenever the pathogen enters her bodyCorrect
(B)Sukriti had actually contracted the disease a few months back and recovered, hence her immune system has developed memory cells, which prevent any subsequent pathogen attack
(C)Sukriti is taking antibodies regularly, which kill the pathogens entering her body and prevent the actual disease
(D)Sukriti has received antibodies against the pathogen from her mother via placenta so she is immune to the pathogen of this disease by birth
Answer: (A)
Solution
Since both girls are of school age and such protection is typically achieved through routine childhood vaccination (e.g., the oral polio vaccine, containing weakened/attenuated
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