London 2017: Norovirus Outbreak
Public Health England says 40 athletes and support staff at the World Athletics Championships in London have been affected by Norovirus, with three cases confirmed by laboratory testing.
Several competitors were forced to withdraw from events in the first half of the tournament after suffering symptoms including vomiting.
The athletes and support staff affected from the Botswanan, German, Canadian, Irish and Puerto Rican teams are thought to be staying at the same hotel.
Public Health England have been working closely with the London 2017 organisers and venues to provide infection control advice to limit the spread of illness.