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In 1918 an extremely deadly form of influenza killed millions around the world
The first documented outbreak of the deadly disease occurred in the 1970s in Zaire
How the world battled a deadly respiratory disease in 2003.
A highly infectious virus appeared in Mexico in 2009 and rapidly spread round the world
A deadly new disease infected laboratory workers in a small town in West Germany in 1967.
Thousands of people died in the world's last major smallpox epidemic in India in 1974.
Timothy Ray Brown was the first person in the world to be cured of HIV/AIDS.
The experience of a Ugandan-born woman diagnosed with HIV in the early days of the virus
In 1957 a new strain of flu emerged in East Asia and quickly spread around the world