Acute infectious diseases appear suddenly with onsets of headache, chills, fever, and general pain proceed on the third to fifth day with rash toxemia(toxic substance in blood) its terminate after two or three weeks. Typhus (actually not one illness but a group of closely related diseases)and its caused by different species rickettsia bacteria usually transmitted into humans from lice, fleas, mites, and ticks insects can carry this disease insects also carry the disease.
What happens when your infected
Human Louse, a wingless parasitic insect. Engraving from Robert Hooke Micrographic London 1665. Now known to be vector for Epidemic typhus.
Tick feeding on human blood
ticks usually pass the disease to humans
Body Louse, Microscopic View
louse spread typhus but ticks spread the disease the most