Show about microbes Mic Ulc robes the history of science slows that however horev er simple a newly discovered fad or law appears at first closer study proves roves it complex and intricate this bolds holds true in the germ theory of disease it seems such an easy explanation each disease is duo due to a specific microbe eliminate the microbe cure the disease but exceptions keep obtrude ing 1139 themselves often the microbe is ia found but not the di disease seaBe hence bac have come to recognize that not the presence of the germ but some virulent condition of it causes the malady it is said that the current of thought though was first turned in this direction on by the discovery by roux rous and yer sin ein of diphtheria bacillus in a large number sif f normal throats and in localities where the disease had rot cot been epidemic for years leaders seem to be ba deciding that it is a family of bacilli one has to deal with in diagnosing and treating certain dis disease nse some members of the family are especially pathogenic path ogenia and some are not the last maybe may be some ome virulent under conditions not well understood but the main one seems to be the passage of the bacillus through one or more individuals whose lov lowered ered resistive ita lity makes them subject to tho the originally attenuated virulence of the bacilli pr roux of antitoxin fame believes these changes in virulence of microbes mic robes are the rule rather than the exception found that cholera bacil bacillus lug was widely spread in water practically all over the world duclaux Du claus Past eurs successor as director of the institute pasteur is also convinced that tho the family of bacilli in both typhoid and cholera is sometimes pathogenic and sometimes not and iq ial widely spread in nature |