...of cases of those exposed to it, and with a degree of virulence proportional to its concentration. 2d. That we must either acknowledge that these diseases,...manners and to distances not now usually suspected. Specific Poison Theory. If the fact be true, that such diseases arise without the specific poison from...

...of cases of those exposed to it, and with a degree of virulence proportional to its concentration. 2d. That we must either acknowledge that these diseases,...especially cholera and typhoid fever, may arise de novof under certain conditions of filth not yet wholly known, or else that the contagious matter is...

...of cases of those exposed to it, and with a degree of virulence proportional to its concentration. 2d. That we must either acknowledge that these diseases,...especially cholera and typhoid fever, may arise de nouof under certain conditions of filth not yet wholly known, or else that the contagious matter is...

...of cases of those exposed to it, and with a degree of virulence proportional to its concentration. 2d. That we must either acknowledge that these diseases, especially cholera and typhoid fover, may arise de nowf under certain conditions of filth not yet wholly known, or else that the contagious...

...Health admitted that there might be validity in the germ theory, yet it continued to argue that "certain diseases, especially cholera and typhoid fever may arise de novo under certain conditions of filth."14 Public health officials in Connecticut questioned the validity of the germ theory into the...