2. A patient infected with Ebola virus will fall into a coma or fainting state after a high fever for several hours, and this symptom is very similar to clinical death, so it is usually considered that this patient has died. However, a few hours or days later, the patient suddenly wakes up and enters a very aggressive state.
This comatose patient will bite all moving objects, including people and animals. At the same time, this disease will make patients secrete a lot of saliva, causing internal bleeding. However, when outsiders mistakenly think or can't make a reasonable explanation, this "sudden resurrection of the dead" has become a "vampire" or a "fake corpse" with bleeding mouth and dull eyes.