Table 5. Prevalence of Borrelia burgdorferi, Anaplasma phagocytophilum and Babesia microti infection in Ixodes scapularis and Ixodes pacificus ticks submitted through passive surveillance, by province, Canada, 2019^a.

Province	Infection prevalence Maximum likelihood estimate
	Borrelia burgdorferi		Anaplasma phagocytophilum		Babesia microti
	%	95% CI	%	95% CI	%	95% CI
Ixodes pacificus
British Columbia	0.3	0.05–0.97	N/A	N/A	N/A	N/A
Ixodes scapularis
Albertab	5.5	1.45–14.01	N/A	N/A	N/A	N/A
Saskatchewan	0.0	0–56.15	0.0	0–56.15	0.0	0–56.15
Manitoba	18.3	12.94–24.68	10.4	6.38–15.81	2.4	0.78–5.63
Ontario	18.3	17.37–19.22	0.9	0.73–1.18	0.1	0.02–0.14
Québec	24.2	22.18–26.30	1.9	1.32–2.63	0.1	0.02–0.39
Newfoundland and Labrador	29.5	17.63–44.01	4.6	0.82–14.28	0.0	0–8.02
New Brunswick	12.8	10.80–15.10	2.6	1.70–3.74	0.3	0.08–0.87
Nova Scotia	26.2	15.38–39.82	3.9	0.70–12.31	0.0	0–6.82
Prince Edward Island	0.0	0–21.53	0.0	0–21.53	0.0	0–21.53
Total	18.8	18.00–19.55	1.5	1.22–1.70	0.1	0.07–0.22

Abbreviations: CI, confidence interval; N/A, not tested

^a No passive surveillance was conducted in Yukon, Northwest Territories or Nunavut for I. scapularis or I. pacificus ticks. Passive tick surveillance has been discontinued in the entire province of Nova Scotia, and some regions of Ontario and Québec; however, individuals could submit ticks directly to the National Microbiology Laboratory Branch from these jurisdictions

^b Excludes I. pacificus found in the province (n=1) which tested negative for B. burgdorferi