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In light of a significant uptick in cyclosporiasis cases across Canada, health officials are urging vigilance but clarifying that the situation remains distinct from the widespread outbreak currently affecting the United States. As of mid-July, cases in Canada have surged compared to previous years, prompting public health authorities to investigate potential sources while ensuring that consumers are well-informed.
Understanding Cyclosporiasis
Cyclosporiasis is an intestinal illness caused by the Cyclospora parasite, primarily transmitted through contaminated food or water. Symptoms typically manifest as watery diarrhoea, abdominal discomfort, bloating, gas, and a decrease in appetite. The illness is particularly concerning, given its potential to disrupt daily life and wellbeing.
Rising Cases in Quebec and Beyond
According to recent reports from Quebec, there has been a notable increase in cyclosporiasis cases, with health officials confirming 107 instances as of July 11, 2026. This figure represents a substantial rise from just 30 cases during the same period in 2025. However, officials stress that these cases are not linked to the extensive outbreak in Michigan, where over 3,700 cases have been confirmed.
A spokesperson from Quebec’s Ministry of Health and Social Services (MSSS) noted that many cases appear to be associated with travel, predominantly to Mexico, with fewer than five cases linked to travel in the U.S. This pattern reflects historical trends, as past outbreaks have similarly been tied to international travel.
British Columbia’s Situation
In British Columbia, 93 cases have been reported this year. Health officials emphasise that cases of cyclosporiasis are relatively common in the province, with most linked to travel. The B.C. Centre for Disease Control is closely monitoring the situation, especially given the context of the ongoing U.S. outbreak. While they are observing an increase in non-travel-related infections, primarily due to contaminated imported produce, officials have yet to connect any specific cases to a particular product or country.
Alberta and Other Provinces
Alberta has confirmed six cases of cyclosporiasis thus far in 2026, with the latest case reported just this past Wednesday. Of the six, five were identified within the last six weeks, all linked to travel to Mexico, with no connections to the U.S. outbreak. Provincial health officials are actively investigating these cases through routine surveillance, reviewing travel histories and potential food exposures.
Meanwhile, provinces including the Northwest Territories, Nova Scotia, New Brunswick, Saskatchewan, and Prince Edward Island have reported no cases this year. Yukon health officials have not responded to inquiries, while Nunavut has confirmed five lab-confirmed cases, with no evidence linking them to current foodborne outbreaks from the U.S.
The U.S. Outbreak Context
As of July 13, the CDC reported 1,645 confirmed cases of cyclosporiasis across 34 states, resulting in 141 hospitalisations. These cases predominantly arose after individuals consumed food in the U.S. Currently, over 5,100 suspected cases are pending further investigation. The CDC has identified a significant number of cases acquired between May and June, raising concerns about the safety of imported produce.
Despite the rising cases in the U.S., the Public Health Agency of Canada has reassured the public that there are no ongoing outbreaks currently under investigation within Canada. However, they note that infections typically increase during the spring and summer months, often linked to fresh produce imported from other countries.
Why it Matters
The rise in cyclosporiasis cases serves as a critical reminder of the importance of food safety and vigilance, particularly as summer approaches and more Canadians indulge in fresh produce. While authorities are not currently restricting imports from the U.S., the situation underscores the need for consumers to be aware of the potential risks associated with imported food. By staying informed and practising safe food handling, Canadians can help mitigate the impact of this intestinal parasite, protecting their health and that of their communities.
