Proper protective clothing for doctors and nurses is critical. All exposed skin must be covered with a material that cannot be penetrated by the virus. But the suit alone isn't enough: Proper procedure is also important.

Health care workers must practice correctly putting on a protective suit, as seen here at the special isolation unit in Dusseldorf. New suits are used every time, so there is no risk of infection when getting dressed. Unprotected workers are therefore able to help.

The patient rooms in the Dusseldorf isolation unit are completely shielded from the outside world. Air is filtered, and wastewater must go through a separate treatment process. The protective suits, used at all times in the ward, are kept at positive pressure. These measures go further than is necessary: While Ebola can be transmitted by contaminated objects, the virus is not airborne.

After the patient is treated, the entire suit is sprayed from the outside with a disinfectant to kill off any potential viruses. Only after this shower can the suit be removed - cautiously.

When removing the protective suit, health care workers must exercise extreme caution. Using permanently installed protective gloves, outside assistance can be provided without coming into direct contact with the suit. After use, the suit is immediately disposed of and burned.

Despite the high safety standards, a total of three nurses in Spain and the United States have contracted the disease. The circumstances surrounding the infection have not yet been clarified. The nurses' homes (as seen here in Texas) were sealed off and disinfected after the discovery of the transmission.

Doctors and nurses in West Africa have now also been outfitted with protective suits. However, these do not always meet the standards deemed necessary for effective protection. Sometimes, small areas of skin are left unprotected, or the material used in the suit is permeable. In addition, putting the suit on and removing it can be risky.

Extreme caution is also necessary at the funerals of people who have died of Ebola. A West African tradition, which sees the family of the deceased wash the body has led to many new infections. For mourning friends and family, these strict isolation measures are often hard to understand.

In a region where medical care is extremely underdeveloped, such an outbreak provides a daunting challenge. Infected people, like here in Liberia, are cared for in hastily constructed tents. But even a country like Germany would probably be overwhelmed by such an epidemic. At the moment, the country only has around 50 beds set up in isolation units.

In some of the affected West African regions, contaminated suits are hung out in the sun in an attempt to disinfect them for further use. But it's much safer to burn the clothing immediately after use, as seen here in Guinea. However, supply shortages and the high prices of suits make such advice difficult to follow. Protective clothing can cost between €30 and €200 ($40-$250).

Air travelers represent the biggest threat when it comes to transmission of the virus over long distances. For this reason, travelers' temperatures are now being monitored at some airports. However, this method does not provide absolute security: Ebola's incubation period is up to 21 days.