Photo: World Health Organization
The World Health Organization (WHO) today declared the Ebola outbreakin West Africa an international public health emergency demanding an "extraordinary" response.

With more than 1,000 known fatalities in West Africa, the WHO said the outbreak -- the worst in modern history -- is uncontained and spreading rapidly, and warned that:

  • the Ebola outbreak constitutes an ‘extraordinary event’ and a public health risk to other states;
  • the possible consequences of further international spread are particularly serious in view of the virulence of the virus, the intensive community and health facility transmission patterns, and the weak health systems in the currently affected and most at-risk countries.
  • a coordinated international response is deemed essential to stop and reverse the international spread of Ebola.

The WHO recommended against a general travel ban but said all nations should maintain border surveillance to try to prevent the virus from spreading into their territories.

U.S. measures

In the United States, the Centers for Disease Control and Prevention issued guidelines for hospitals and other healthcare organizations but emphasized that the disease does not yet represent a "significant risk" to the U.S.

Source: CDC

Questions & Answers

The CDC issues these questions and answers about Ebola:

 What is Ebola?

Ebola virus is the cause of a viral hemorrhagic fever disease. Symptoms include: fever, headache, joint and muscle aches, weakness, diarrhea, vomiting, stomach pain, lack of appetite, and abnormal bleeding. Symptoms may appear anywhere from 2 to 21 days after exposure to ebolavirus though 8-10 days is most common.

How is Ebola transmitted?

Ebola is transmitted through direct contact with the blood or bodily fluids of an infected symptomatic person or through exposure to objects (such as needles) that have been contaminated with infected secretions.

Can Ebola be transmitted through the air?

No. Ebola is not a respiratory disease like the flu, so it is not transmitted through the air.

Can I get Ebola from contaminated food or water?

No. Ebola is not a food-borne illness.  It is not a water-borne illness.

Can I get Ebola from a person who is infected but doesn’t have any symptoms?

No. Individuals who are not symptomatic are not contagious. In order for the virus to be transmitted, an individual would have to have direct contact with an individual who is experiencing symptoms.

Q: Are there any cases of individuals contracting Ebola in the U.S.?


What is being done to prevent ill passengers in West Africa from getting on a plane?

CDC is assisting with active screening and education efforts on the ground in West Africa to prevent sick travelers from getting on planes. In addition, airports in Liberia, Sierra Leone and Guinea are screening all outbound passengers for Ebola symptoms, including fever, and passengers are required to respond to a healthcare questionnaire.  CDC is also surging support in the region by deploying 50 additional workers to help build capacity on the ground.

What is CDC doing in the U.S.?

On the remote possibility that an ill passenger enters the U.S., CDC has protocols in place to protect against further spread of disease. These include notification to CDC of ill passengers on a plane before arrival, investigation of ill travelers, and, if necessary, isolation. CDC has also provided guidance to airlines for managing ill passengers and crew and for disinfecting aircraft. CDC has issued a Health Alert Notice reminding U.S. healthcare workers of the importance of taking steps to prevent the spread of this virus, how to test and isolate suspected patients and how they can protect themselves from infection.

What about ill Americans with Ebola who are being brought to the U.S. for treatment? How is CDC protecting the American public?

CDC has very well-established protocols in place to ensure the safe transport and care of patients with infectious diseases back to the United States. These procedures cover the entire process -- from patients leaving their bedside in a foreign country to their transport to an airport and boarding a non-commercial airplane equipped with a special transport isolation unit, to their arrival at a medical facility in the United States that is appropriately equipped and staffed to handle such cases. CDC’s role is to ensure that travel and hospitalization is done to minimize risk of spread of infection and to ensure that the American public is protected. Patients were evacuated in similar ways during SARS. 

What does the CDC’s Travel Alert Level 3 mean to U.S. travelers?

On July 31, the CDC elevated their warning to U.S. citizens encouraging them to defer unnecessary travel to Guinea, Liberia, and Sierra Leone over concerns that travelers may not have access to health care facilities and personnel should they need them in country.

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