Cases of meningococcal disease in Canada have reached their highest level in more than a decade, according to new public health data.
The rare but serious infection can cause meningitis, bloodstream infections and sepsis, leading to organ damage, long-term disability or death.
Infants and young adults are at some of the greatest risk.
Data from the Public Health Agency of Canada shows a steady increase in cases since the pandemic.
There were 48 cases in 2021, and the number rose to almost 100 in 2023.
Preliminary figures compiled by CBC News suggest at least 132 cases in 2024 and 155 in 2025, the highest number since 2012.
“So this is a very significant consequence and a very serious condition at such a young age,” said Dr. Cristin Muecke of Nova Scotia Health.
“And from that perspective, the consequences are pretty high, even if it’s rare.”
The infection caused by Neisseria meningitidis bacteria has a fatality rate of around 14 percent in Canada.
Survivors can face permanent complications such as hearing loss, neurological damage and limb amputations.