Typhus, a Crow Disease, Is Spreaded by Body Lice

Typhus is spread by the human body louse, pediculus humanis corporus. It's estimated that in russia, 25 million people became infected with typhus and around two and a half to three million people died of the disease. Vaxcines are notoriously difficult to make because they don't maintain their own genetic makeup. The key to creating a typhus vaccine is that you needed enough material to be able to grow enough of the raezia bacteria in order to get it into the lab for testing.