vaccines have eliminated polio, and all but wiped out measles, mumps and rubella.nk the reason why we're not seeing a lot of those illnesses is just because of that. not because we're necessarily a healthier population, but because we've taken steps to try and eradicate those diseases that we could eradicate. we have a tremendous number of vaccines we didn't have even when i started practicing, for instance, the h-flu vaccine which came out in the late 80s and we started giving it before the age of 2 in the 90s. when i started practicing, my very first week in practice, i almost lost a child to h-flu meningitis. carried them in the back of my car to the emergency room, ran them in... thankfully they did well. but that's a disease we don't even see anymore because of the h-flu type b vaccine. what we see most commonly now is respiratory infections, especially otitis media. we see a tremendous number of children with ear infections. other respiratory infections are very common-- coughs, cold, sinus and cause us a lot of visits. catherine parrish: and that's because k