Polio, smallpox, tuberculosis and the flu are just a few of the threats to the health of the city throughout the years. These photos showcase the hospitals, vaccination programmes which all had one common aim - to help keep people alive. The photos are a mix from the YEP archive and others published courtesy of photographic archive Leodis, which is run by Leeds Library & Information Service. They also run heritage blog The Secret Library Leeds, which provides a behind the scenes look at the Central Library and highlights from its special collections, including rare books hidden away in the stacks. READ MORE: Changing Leeds - How the city improved its hygiene through the years LOVE LEEDS? LOVE NOSTALGIA? Join Leeds Retro on facebook

7. The fight against disease
Killingbeck Hospital in December 1914. It opened as a centre for smallpox treatment in 1904, then from 1913 specializing in tuberculosis cases. In this view extensions are being built. Photo: Leeds Libraries, www.leodis.net

8. The fight against disease
August 1914. A ward under construction of a new smallpox compound, which included the buildings of Killingbeck Farm on the slopes of Wykebeck Valley. Photo: Leeds Libraries, www.leodis.net

9. The fight against disease
Sackville Street in Woodhouse in July 1958. In the centre is a noticeboard, the poster on the right is an appeal for money 'Your gift now for final victory over Polio'. This disease was a scourge, the infection causing paralysis. Photo: Leeds Libraries, www.leodis.net

10. The fight against disease
February 1942 and an immunisation programme is in full flow. Location unknown.

11. The fight against disease
January 1962 and Eileen Sykes throws a parcel over the gates of Oakwell Hospital in Birstall for her son, an ambulance driver. The hospital was treating five patients who had smallpox.

12. The fight against disease
Dr. R. M. Holman vaccinates Sister D. Bradley against smallpox at St James's Hospital in 1962. Staff in Leeds hospitals were vaccinated as a precautionary measure.

