Canada has reported its first case of the rare clade I mpox in a traveler who returned to Manitoba from central or eastern Africa, the Public Health Agency of Canada (PHAC) announced on Friday. The individual, who exhibited symptoms shortly after their return, sought medical care and is currently isolating. PHAC confirmed the diagnosis through the National Microbiology Laboratory, which identified the virus as clade Ib mpox, a variant linked to outbreaks in Africa.
This marks a significant development, as clade II mpox has been circulating in Canada since 2022, but this is the country's first recorded case of clade I. According to PHAC, the case is linked to a broader outbreak in central and eastern Africa, where the virus has been spreading in recent months. Canadian health authorities are now conducting a detailed investigation, including contact tracing, to mitigate further transmission risks.
The World Health Organization (WHO) recently declared the mpox outbreak a global public health emergency for the second time in two years. The declaration was prompted by the emergence of clade Ib, which has spread beyond the Democratic Republic of Congo to neighboring countries. This underscores the virus’s potential to cross borders and infect new populations.
Mpox, a viral infection transmitted through close physical contact, is characterized by flu-like symptoms and distinctive pus-filled lesions. Although the illness is typically mild, it can sometimes result in severe outcomes, including death. Health authorities worldwide remain on high alert, especially as new variants like clade Ib emerge.
Despite this new case, PHAC reassured the public that the risk to Canadians remains low. The agency is actively monitoring the situation and working with provincial health authorities in Manitoba to respond effectively. As investigations continue, officials emphasize the importance of vigilance, especially for travelers returning from regions experiencing outbreaks.
