Public health expert: Until recently people believed that applications of biochemical research would eventually achieve complete victory over the microorganisms that cause human disease. However, current medical research shows that those microorganisms reproduce so rapidly that medicines developed for killing one variety will only spur the evolution of other varieties that are immune to those medicines. The most rational public health strategy, ttherefore, would place much more emphasis than at present on fully informing people about the transmission of diseases caused by microorganisms, with a view to minimizing the incidence of such diseases.
The conclusion drawn by the public health expert is that there is good reason to make a particular change to public health policy.