Bacteriology has taught us that both heat and cold are fatal to pathogenic infections; for this reason either of the apparently contradictory methods of treatment may help, _i. e_., either hot or cold applications. It should be borne in mind, however, that we have to deal not only with the adult organisms, but with the spores also. The application of cold may keep the spores from developing, while heat may promote their development, and the course of the disease may vary, therefore, according to our choice of treatment.英文原著 · 《The Origin and Nature of Emotions》
We have no idea what pathogen typhoid Penny has introduced into our environment.美剧 · 《The Big Bang Theory》