"Health care workers prepare to enter the ""red zone"" to care for patients at the ELWA II Ebola Treatment Unit (ETU) in Monrovia, Liberia on Sunday, March 1, 2015. Occidental College professor Mary Beth Heffernan's PPE Portrait Project involves photographing health care workers and making disposable, adhesive prints of their images, which are then placed on the worker's PPE.<br /> ELWA II has one of the largest numbers of Ebola patients in Liberia at the moment and was the first ETU to open in Monrovia, Liberia's capital city.<br /> (Photo by Marc Campos, Occidental College Photographer) Mary Beth Heffernan, professor of art and art history at Occidental College, works in Monrovia the capital of Liberia, Africa in 2015. Professor Heffernan was there to work on her PPE (personal protective equipment) Portrait Project, which helps health care workers and patients fighting the Ebola virus disease in West Africa.<br />
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