At the time when I was conducting my research there was no known method for taking the guinea pig's temperature. I demonstrated… — Charles Jules Henry Nicole Conducting Copy Share Image
The fact that I was fortunate enough to escape contagion, in spite of frequent, sometimes daily contacts with the disease, was because… — Charles Jules Henry Nicole Because Copy Share Image
From the practical point of view, the susceptibility to infection of the guinea pig proved to be the most useful step forward.… — Charles Jules Henry Nicole Animal Copy Share Image
It did not seem likely that I was destined to undertake research on typhus. — Charles Jules Henry Nicole Destined Copy Share Image
Even if it had not been possible to reproduce the disease in animals and consequently to verify the hypothesis, this simple observation… — Charles Jules Henry Nicole Animals Copy Share Image
I demonstrated the characteristics of experimental fever. It appears after an incubation period which is never less than five days. It follows… — Charles Jules Henry Nicole After Copy Share Image
Just as the only reservoir for the typhus virus in nature is provided by man, so the only vector of infection is… — Charles Jules Henry Nicole After Copy Share Image
I finally demonstrated that typhus infection is not hereditary in the louse. — Charles Jules Henry Nicole Finally Copy Share Image
The discovery that I soon made that the guinea pig was also susceptible to infection made it possible for me, from the… — Charles Jules Henry Nicole Also Copy Share Image
