Howard Ricketts (30 dic 1909 anni – 30 dic 1924 anni)
Descrizione:
* found typhus locatedin the blood of the victim and in the bodies of the lice. Ricketts showed that the disease could be transmitted to monkeys* went to Northwestern university
* (interesting fact) died of this disease
Aggiunto al nastro di tempo:
Data:
30 dic 1909 anni
30 dic 1924 anni
~ 15 years