Climate change, especially warming winters, is linked to rising rat populations in cities, according to a new study. It found “significant” increases in rat numbers in places including Washington D.C.

Respiratory tract diseases are illnesses that affect components of the respiratory system, including the nasal passages, the bronchi and the lungs. They range from acute infections, such as ...

The Public Health Agency of Canada is part of the federal health portfolio. Our activities focus on protecting against threats to public health, preventing and reducing diseases and injury, and ...