Question

b) All of the following statement are true regarding polio virus except
i) It is transmitted by few-oral route
ii) Asymptomatic infection are common in children
iii) There is a single serotype causing infection
iv) Line attenuated vaccine produce herd immunity.
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Answer 1

Answer:

1. b) All of the following statement are true regarding polio virus except

i) It is transmitted by few-oral route

1. ii) Asymptomatic infection are common in children

iii) There is a single serotype causing infection

1. iv) Line attenuated vaccine produce herd immunity.