Typhus fever is an infection caused by a germ. Ticks, fleas, and lice transfer their germs when they bite our skin. You can also get the germ from the stool of infected fleas and lice. Sometimes, you may inhale dust which contains the germs. The germ infects your blood and muscles. It can damage your tissues and cause serious health problems. If this is not treated, death may occur. This illness is treated with drugs. You may also need extra fluids and oxygen until you start to feel better.