Please tell me if there are any negative heath side effects from delaying vaccinations..?

Avoid Death/injury: We have been blessed by decreasing numbers of deaths due to illnesses like pertussis, polio, hib meningitis ; the like. Many parents assume since the other kids in the neighborhood get shots, her baby doen't need to. Well? Just assume that traveler from asia/south america/etc. Didn't get of a plane yesterday incubating that illness before brushing into you at the mall is it worth your babies life.