Show needed unless disease producing receive a complete knockout blow immediately fatal from treatment with vilh some new drugs it Is better to do without them for they make conditions more dangerous than before this was observed to be the case with ith the sulfa drugs and liris his been found true also jn in the case of penicillin drs wesley W spink V ferris and J J vivino vl alno of the university of minnesota medical school have obtained experimental evidence that it if bacteria that are ren dered innocuous by adequate doses of penicillin receive less than adequate doses they develop an immunity to the drug and thereafter cannot be killed by even extremely large doses |