The recent threat to the mankind is Ebola. ebola is the disease caused by a virus Zaire ebola. many of the people were effected with Ebola, among which 90 percent people were killed within few weeks. Ebola virus are found in bats, chimpanzees of south africa. The interesting fact is, that the doctors who were treating a patient with ebola were died because of the spread of the virus by the infected person. This disease is first discovered in 1976 when two outbreaks  occured. the disease can be trasmitted by the contact of any human secretions. This disease is not transmitted through Air. It is refereed as  Ebola hemorrhagic fever. It starts with fever and continues with vomting muscle pains. It causes internal and externa bleeding which causes the death. the only way to eradicate is to avoid touchng people, washing hands, maintaining hygienic conditions.