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. Charles Jules Henry Nicole 7thbiteday share on social
I finally demonstrated that typhus infection is not hereditary in the louse. Charles Jules Henry Nicole demonstratefinallyhereditary Change image and share on social
My first attempts to transmit typhus to laboratory animals, including the smaller species of monkeys, had failed, as had those of my predecessors, for reasons which I can easily supply today. Charles Jules Henry Nicole animalattempteasily Change image and share on social
