Just as the only reservoir for the typhus virus in nature is provided by man, so the only vector of infection is the louse. The bite of the louse is not virulent immediately after the infecting meal. It becomes so only towards the 7th day following infection.
More Quotes from Charles Jules Henry Nicole:
It did not seem likely that I was destined to undertake research on typhus.Charles Jules Henry Nicole
I finally demonstrated that typhus infection is not hereditary in the louse.
Charles Jules Henry Nicole
I was less successful in my attempts to effect preventive vaccination against typhus by using the virus and in trying to produce large quantities of serum using large animals.
Charles Jules Henry Nicole
Even if it had not been possible to reproduce the disease in animals and consequently to verify the hypothesis, this simple observation would have been sufficient to demonstrate the way in which the disease was propagated.
Charles Jules Henry Nicole
The fact that I was fortunate enough to escape contagion, in spite of frequent, sometimes daily contacts with the disease, was because I soon guessed how it spread.
Charles Jules Henry Nicole
At the time when I was conducting my research there was no known method for taking the guinea pig's temperature. I demonstrated a technique which is now widely used.
Charles Jules Henry Nicole
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Based on Topics: Man Quotes, Nature QuotesBased on Keywords: infecting, infection, louse, reservoir, typhus, vector, virulent, virus
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