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In the UK there have been 265 cases of Cyclospora infection since 1 June 2016 (178 confirmed and 87 probable). Of these cases 193 are associated with travel to Mexico (87 in England, 94 in Scotland and 12 in other parts of the UK), 50 of these cases reported travel to hotels and resorts on the Riviera Maya coast. The source of infection is thought likely to be a foodstuff supplied to hotels throughout the area. Investigation into this outbreak is ongoing.
Awareness of the outbreak should be maintained and travellers to Mexico are strongly advised to maintain a high standard of food, water and personal hygiene, even if staying in high-end resorts.
Cyclospora cayetanensis is a protozoan parasite that infects humans and other primates. Infection can cause frequent, watery diarrhoea, abdominal cramping, bloating, nausea, flatulence, low-grade fever, loss of appetite and weight. HIV positive individuals and those with other immune deficiencies can be at risk of more severe infection.
Advice for Travellers
An advice sheet for travellers can be accessed via the following link:
Cyclospora Advice for Travellers
Infection is transmitted through consumption of food or water that is contaminated with human faeces containing the parasite. Foods often implicated in outbreaks include soft fruits like raspberries and salad products such as coriander, basil and lettuce. Key points:
On return from Mexico, if travellers have any symptoms such as those described above they should seek medical attention and tell their GP about their travel history.
Advice for Healthcare Professionals
Protozoan parasitic infection (including Cyclospora) should be considered as a diagnosis in travellers returning from Mexico presenting with gastrointestinal symptoms. Stool sampling and testing should be carried out in the normal way through local laboratories and confirmed cases reported to the local health protection team.
Further information on Cyclosporiasis