TB: Return of the Plague (2014)
In the southern African nation of Swaziland, around a quarter of all adults are now HIV positive. With so many now living with compromised immune systems, tuberculosis, which had been in decline for decades, has made a dramatic comeback. Now it has a foothold once more, new mutations are evolving fast, meaning the disease threatens the lives of the healthy as well as those with HIV. There are over eight million new infections every year worldwide, but Swaziland is the epicentre of the disease, with the highest rate of TB infection in the world. With the infection spreading with a cough or sneeze, international travel means these lethal new infections are already starting to appear in Europe - last year alone 3,500 Londoners were diagnosed with the disease.