Is death the only thing that matters? Because even as death rates from measles dropped due to better care for acute complications such as pneumonia, the case rate stayed the same and so did the rate of complications such as measles encephalitis. It was still occurring at about 1 in 1000 cases at the time of vaccine introduction. Sure, it only killed about 20% of patients outright, but it also caused permanent brain injuries in some patients who survived.
10/19/12 at 8:20am