Two Ebola Vaccines Yield Positive Results in Clinical Trial in Liberia

In a step toward a life-saving vaccine for Ebola virus disease, 2 test vaccines have been found to be safe and effective at inducing long-lasting immunity against the virus in a study of 1500 adults in Liberia.

Responsible for a devastating outbreak in 2014-2016 in many countries in Africa, the Ebola virus is transmitted via direct contact with blood or bodily fluids of an infected individual or someone who has died from the disease, contaminated objects, and possibly through sexual contact with a man who has recently recovered from the infection, according to the Centers for Disease Control and Prevention (CDC). Symptoms of an Ebola infection, which can occur 2 to 21 days after exposure, include a fever, severe headache, body aches, unexplained hemorrhaging, among other signs. Individuals can recover from the infection with supportive clinical care and a strong immune response and can develop antibodies against the virus that can last for 10 years.

Currently, there are no drugs or vaccines against the Ebola virus; however, during the 2014-2016 outbreak in West Africa, researchers were able to test 2 experimental vaccines. A total of 1500 men and women in Liberia were…