What does the recent resurgence of tuberculosis in Canada mean for public health? According to Simon Grandjean Lapierre, a clinical professor at the University de Montréal and researcher at the CHUM Research Centre, it signifies a troubling trend that must be addressed urgently.
Since the COVID-19 pandemic, tuberculosis cases have been on the rise, reversing decades of progress. “We’ve seen a significant increase in cases on the Island of Montreal since 2023,” Lapierre stated, emphasizing the need for immediate public health actions.
Tuberculosis, caused by the bacterium Mycobacterium tuberculosis, was steadily decreasing in Canada since the 1950s. However, recent data indicates that the disease is making a comeback, with the CHUM diagnosing between 20 and 40 cases annually.
Lapierre leads a translational research program focused on tuberculosis control in both Canada and Madagascar, where a study involving 46,000 participants is underway. He noted that the increase in tuberculosis cases is linked to factors such as population mobility, precarious living conditions, and inadequate screening.
“It’s what we call a ‘re-emerging’ disease,” Lapierre explained, warning that without appropriate public health actions, everyone remains at risk. His team is also working on developing new diagnostic tools to identify antibiotic resistance in tuberculosis bacteria, a critical step in managing the disease.
The situation is dire, and the implications for public health are significant. As cases rise, the urgency for effective intervention grows. Details remain unconfirmed regarding the full extent of the resurgence and the effectiveness of current public health measures.