Meningococcal disease, dangerous bacterial infection, hits decade high in Canada

Cases of meningococcal disease have reached their highest level in Canada in more than a decade, according to new public health data.

The rare but serious infection can cause meningitis, bloodstream infections and sepsis, and may lead to organ damage, long-term disability or death.

Infants and young adults face some of the highest risks.

Data from the Public Health Agency of Canada shows a steady rise in cases since the pandemic.

There were 48 cases in 2021, increasing to nearly 100 in 2023.

Preliminary figures compiled by CBC News suggest at least 132 cases in 2024 and 155 in 2025, the highest total since 2012.

"So that's a very significant consequence and very serious disease at such a young age," said Dr. Cristin Muecke of Nova Scotia Health.

"And so from that perspective, even though it is rare, the consequences are quite high."

The infection, caused by Neisseria meningitidis bacteria, has a death rate of around 14 per cent in Canada.

Survivors can face lasting complications including hearing loss, neurological damage and limb amputations.