A nurse wears protective clothing as he demonstrates the facilities in place at the Royal Free Hospital in north London on August 6, 2014, in preparation for a patient testing positive for the Ebola virus. The specialised unit allows a team of doctors and nurses to provide care for anyone with the contagious condition. Despite it's high mortality level, Consultant Stephen Mepham advised against panic, stating that the chances of meeting an undiagnosed patient are virtually impossible with next to no chance of catching the virus without exposure to the sufferer's bodily fluids. AFP PHOTO/Leon Neal        (Photo credit should read LEON NEAL/AFP/Getty Images)
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