**
As the U.S. grapples with a significant rise in cyclosporiasis cases, Canadian health authorities are monitoring the situation with vigilance. The illness, caused by the cyclospora parasite, has seen a dramatic increase in infections, prompting discussions about the safety of fresh produce imports from the United States. As of mid-July, the Canadian Food Inspection Agency (CFIA) has stated it does not plan to impose restrictions on such imports, while the Public Health Agency of Canada (PHAC) has indicated no current investigations into outbreaks within the country.
Rising Cyclosporiasis Cases in the U.S.
According to the Centers for Disease Control and Prevention (CDC), the number of confirmed cyclosporiasis cases in the U.S. reached 1,645 across 34 states by July 13, with 141 individuals requiring hospitalisation. This marks a substantial increase from July 9, when there were 843 reported cases across 31 states and 86 hospitalisations. The CDC has acknowledged that actual case counts may be higher than reported, as states often have more data than what is reflected in national figures.
The Michigan Department of Health and Human Services reported 3,762 total cases, while Ohio has recorded 177 infections as of July 2. However, the source of the outbreak remains unclear, with investigations ongoing. Notably, many affected individuals did not travel outside the U.S. during the two weeks prior to becoming ill, suggesting that the infections could be linked to local produce.
Canada’s Response and Current Situation
In Canada, the PHAC has confirmed that while there are no active investigations into cyclosporiasis outbreaks, the agency typically sees an uptick in such infections during warmer months, particularly associated with imported fresh fruits and vegetables. Cyclosporiasis is classified as a nationally notifiable disease, with data on case counts collected annually.
Health officials across Canadian provinces, including those in Alberta and Nunavut, reported a small number of cases but indicated no links to the current U.S. outbreak. Alberta has noted five confirmed cases this year, with no recent travel to the U.S. reported among those affected. In Nunavut, officials stated that their cases do not appear to be related to any ongoing foodborne outbreaks or imports from the U.S.
Understanding Cyclosporiasis and Its Connection to Food
Dr. Isaac Bogoch, an infectious disease specialist at Toronto General Hospital, explained that the parasite responsible for cyclosporiasis requires a specific life cycle before it can be transmitted between humans. The risk of human-to-human transmission is low, and the majority of cases are likely due to the consumption of contaminated food, particularly fruits and vegetables.
Symptoms of the illness may include watery diarrhoea, bloating, gas, and loss of appetite, among others. The annual average of reported cases in Canada has been around 238, based on data from 2004 to 2019.
Prevention: How to Stay Safe
To mitigate the risk of cyclosporiasis, the PHAC advises Canadians to adhere to food safety practices. These include thoroughly washing all fresh produce under running water and cooking certain items, particularly those known to carry the parasite, such as leafy greens, cilantro, and raspberries.
The Michigan health department emphasises specific precautions, such as buying whole heads of lettuce instead of prewashed varieties and discarding outer layers of leafy greens. Proper cooking can also eliminate the parasite, making it safer to consume certain foods that may otherwise pose a risk.
Why it Matters
The current surge of cyclosporiasis in the U.S. highlights the interconnectedness of food safety across borders, especially as Canada imports a substantial amount of fresh produce from its southern neighbour. With the potential for outbreaks to cross into Canada, it is imperative for health authorities to remain vigilant. While the PHAC has indicated no immediate cause for alarm, ongoing monitoring and public education about food safety practices are essential to prevent any possible escalation of infections. As consumers, understanding how to safely handle and prepare food can significantly reduce the risk of illness, ensuring that the bounty of summer produce can be enjoyed without fear.