During an outbreak, the Ebola virus can spread quickly in health-care facilities, hence the importance of quarantine areas for those with the virus and special protective gear for health workers.
The 2014 outbreak in West Africa has the highest proportion of doctors, nurses, and other health-care workers being infected.
According to the World Health Organization, more than 240 health-care workers have been infected in Guinea, Liberia, Nigeria, and Sierra Leone, and more than 120 have died.
Factors for the high proportion of infected medical staff are: shortages of personal protective equipment or improper use, far too few medical staff for such a large outbreak, and medical staff working in isolation wards far beyond the hours recommended as safe.
Personal protection gear equipment (PPE) and gear for Ebola health-care workers include gloves, masks, gowns or full-body suits, high boots and eye or face shields, which must be worn at all times.