Gmatprep CR: Influenza

I'm with you reply2spg, it looks like the answer is E. I am assuming the OA is not D since it has nothing to do with the conclusion. The whole point is to ensure that this new vaccine reduces the spread, so reducing the affect on children greatly helps the overall spread.

Adults take injections to combat influenza.

Conclusion: "no significant public health benefit" would arise as a result of administering the nasal spray to children.

assumption is that the adults do not contract influenza from children -- D clearly creates this link.

My thoughts:

Premise - New vaccine in form of nasal spray has proven effective in preventing influenza in children.
Premise - Children are more likely to contract and spread influenza than older adults.
Conclusion - The new vaccine will greatly reduce the spread of influenza in population.

D) Actually weakens the conclusion. If only few older adult contracts from children that means most of the older adults are contracting it from some other source. As a result the new vaccine will not greatly reduce the spread of influenza in population.

E) Actually supports the conclusion - More parents getting their children vaccinated using new vaccine. This is strengthening the conclusion.

E supports the argument that new influenza vaccine will reduce the spread of influenza because parents will be more inclined to get their children vaccinated.

E seems to be the correct choice