In 1978, Bedson was head of the smallpox laboratory at Birmingham Medical School. In late August 1978, during the bank holiday weekend, Bedson was on-call when he was called by
Alasdair Geddes, the region's smallpox expert, to examine fluid samples taken from blisters of Janet Parker, a photographer working above Bedson's smallpox laboratory. She had been admitted to an infectious diseases ward at the East Birmingham Hospital with an initial diagnosis of
flu and drug eruption. The day after confirming the specific strain of smallpox, while in quarantine at his home in Cockthorpe Close,
Harborne, he committed suicide by cutting his throat and died five days later on Wednesday 6 September. His suicide note read: '''' In Bedson's
Munk's Roll biography published by the
Royal College of Physicians, virologist
Peter Wildy and
Sir Gordon Wolstenholme wrote: The verdict in court was that Bedson was "not guilty". How Parker exactly became infected with smallpox remains unknown. ==Personal and family==