Health Canada says mice can squeeze through a crack the size of a dime, so mouse-proofing a Canadian home means sealing every exterior opening at least that big, packing steel wool or copper mesh around pipes before caulking, then removing the food, water and nesting material that draw rodents in. Traps come second, set at right angles to the wall and baited but unset for three to four days first. Poison is a last resort: Health Canada says baits should never be the only method of control. Never sweep or vacuum dry droppings, soak them in one part bleach to nine parts water instead, because the deer mouse is Canada’s most common carrier of hantavirus.

B.C. has no active measles cases as students return to class, but the B.C. Centre for Disease Control sequenced a genetically distinct strain after a cluster of 11 cases in the province’s northeast in July and August. That matters because Canada’s measles elimination status, lost on Nov. 10, 2025, is tracked by virus strain rather than case count: the country regains it only once transmission of the original outbreak strain is interrupted for at least 12 months. Neither PHAC nor PAHO has published the date that clock started, so widely repeated late-2027 timelines are inference rather than an official figure.

A Calgary unity concert is set for Sept. 20, but Alberta courts have twice ruled that separation would breach Treaty 7 and Treaty 8 obligations.

Indigenous MPs condemned a residential school denialist shirt campaign this week. Three months earlier, the Senate rejected an amendment to criminalize denialism.

SOCAN filed a Federal Court claim against AI music generator Suno on Sept. 2, alleging outputs streamed in Canada replicate songs by its members.