In case you've been living under a rock, there's an ebola outbreak going on in Africa.
FREETOWN, July 29 (Reuters) - The doctor leading Sierra Leone's fight against the worst Ebola outbreak on record died from the virus on Tuesday, the country's chief medical officer said.
The death of Sheik Umar Khan, who was credited with treating more than 100 patients, follows the deaths of dozens of local health workers and the infection of two American medics in neighboring Liberia, highlighting the dangers faced by staff trying to halt the disease's spread across West Africa. (source)
Ebola virus disease (EVD) or Ebola hemorrhagic fever (EHF) is the human disease caused by the ebola virus. Symptoms typically start two days to three weeks after contracting the virus with a fever, throat and muscle pains, and headaches. There is then typically nausea, vomiting and diarrhea, along with decreased functioning of the liver and kidneys. At this point some people begin to have problems with bleeding.
The disease is usually acquired when a person comes into contact with the blood or bodily fluids of an infected animal such as a monkey or fruit bat. Fruit bats are believed to carry and spread the virus without being affected by it. Once infection of a human occurs, the disease may be spread from one person to another. Men who survive may be able to transmit the disease sexually for nearly two months. To make the diagnosis, typically other diseases with similar symptoms such as malaria, cholera and other viral hemorrhagic fever are first excluded. The blood may then be tested for antibodies to the virus, or the viral RNA, or the virus itself, to confirm the diagnosis.
Prevention includes decreasing the spread of the disease from infected monkeys and pigs to humans. This may be done by checking these types of animals for infection and killing and properly disposing of the bodies if the disease is discovered. Properly cooking meat and wearing protective clothing when handling meat may also be helpful, as is wearing protective clothing and washing hands when around a person who has the disease. Samples of bodily fluids and tissues from people with the disease should be handled with special caution. (source)
Getting back to the question in the title, what role should restrictions on who can enter the US play, and specifically people whose trip originated in the areas suffering from the ebola outbreak.