Explanation:

• It is is also called Ebola hemorrhagic fever (EHF). It is a viral hemorrhagic fever caused by the Ebolaviruses. 
• Humans get infected with the virus when they acquire direct contact with the virus through broken skin, nose, mouth, or with blood, faeces, vomit, or bodily fluids of an infected person. 
• It is not an airborne disease. Hence statement 3rd is incorrect.
• As such, there is no treatment for Ebola. In 2016, a vaccine was developed offering 70 – 100% prevention against the disease, called an rVSV-ZEBOV vaccine.
• Liberia, along with Sierra Leone and Guinea was an epicentre of the latest outbreak.
• There is still ongoing risk of re-emergence of the disease because of the persistence of the virus in a proportion of survivors.