what sort of intelligence are we talking about? the ability to decipher a set of inter-related variables and their interactions and predict the optimal outcome? if we are to use this game theory model, there would be only one "intelligent" course of action for an american living an exclusively domestic life today: no vaccinations. when one computes the odds of contracting ANY of the illnesses we currently vaccinate for, then further computes the odds of having ANY serious side effects, and contrasts these with both the known and the possible side effects of vaccinations, the "intelligent" course of action is quite obvious. (this model assumes current disease prevalence in the US.)
any change in the variables above would potentially affect the optimal strategy of course.
ayn rand endorsed this approach, therefore you will too.
btw it was the pnas.org post that i found really interesting.