Table 4. Prevalence of Anaplasma phagocytophilum, Babesia microti, Borrelia burgdorferi and Borrelia miyamotoi infection in Ixodes scapularis and Ixodes pacificus ticks submitted through passive surveillance, by province, Canada, 2020^a.

Province	Infection prevalence Maximum likelihood estimate
	Anaplasma phagocytophilum		Babesia microti		Borrelia burgdorferi		Borrelia miyamotoi
	%	95% CI	%	95% CI	%	95% CI	%	95% CI
Ixodes pacificus
British Columbia	N/A	N/A	N/A	N/A	0	0–0.54	0.14	0.01–0.68
Ixodes scapularis
Alberta	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Saskatchewan	14.29	0.85–51.51	0	0–35.43	42.86	12.96–77.51	0	0–35.43
Ontario	0.73	0.49–1.04	0.03	0–0.13	17.78	16.56–19.04	0.46	0.28–0.72
Québec	1.24	0.63–2.19	0	0–0.47	19.50	16.87–22.35	0.62	0.23–1.36
Newfoundland and Labrador	0	0–48.99	0	0–48.99	25.00	1.52–73.74	0	0–48.99
New Brunswick	1.17	0.48–2.40	0	0–0.74	8.97	6.72–11.68	0.58	0.15–1.57
Nova Scotia	0	0–9.64	0	0–9.64	25.00	13.03–40.81	0	0–9.64
Prince Edward Island	0	0–20.15	0	0–20.15	0	0–20.15	0	0–20.15
Total	0.87	0.45–1.15	0.02	0–0.09	17.19	16.17–18.26	0.49	0.33–0.71

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

^a Number of ticks tested: British Columbia (n=705), Alberta (n=0), Saskatchewan (n=7), Ontario (n=3,705–3,713), Québec (n=809), Newfoundland and Labrador (n=4), New Brunswick (n=514–516), Nova Scotia (n=36), Prince Edward Island (n=15)