Overview
Introduction
Lyme disease is the most common vector borne disease in Canada and one of the fastest growing notifiable infections.
CNPLE
CNPLE
Lyme disease is the most common vector-borne disease in Canada and one of the fastest-growing notifiable infections. Reported cases have risen from a few hundred per year after it became nationally notifiable in 2009 to several thousand annually, driven by northward expansion of black-legged tick populations linked to climate change. Risk areas are concentrated in southern British Columbia (Ixodes pacificus), southern Manitoba, much of southern and eastern Ontario, southern Quebec, New Brunswick and Nova Scotia (Ixodes scapularis). The Public Health Agency of Canada (PHAC) and provincial public health authorities publish and regularly update risk-area maps. The nurse practitioner in Canadian primary care diagnoses and treats early Lyme disease, decides on post-exposure prophylaxis, recognizes and refers disseminated disease, manages special populations across the lifespan, reports to public health and educates communities. This lesson aligns with PHAC guidance, provincial guidance and the 2020 IDSA/AAN/ACR guideline widely used in Canadian practice.
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