Figure 5.
Ixodes scapularis and Ixodes pacificus ticks with associated pathogens collected through active surveillance, Canada, 2019a,b
a Each symbol represents an active surveillance site where B. burgdorferi (n=38), A. phagocytophilum (n=12), B. miyamotoi (n=4), or Powassan virus (n=1) were found in I. scapularis ticks. There were 142 sites where no tick-borne pathogens were identified in ticks, including sites where no I. scapularis or I. pacificus were found (n=108). No active surveillance was conducted in Yukon, Northwest Territories or Nunavut for I. scapularis or I. pacificus ticks. The presence or absence of infected I. scapularis ticks is influenced by varying level of effort of active surveillance between provinces and seasonal variation when active surveillance took place. Infection prevalence should be interpreted with caution as not all active surveillance conducted in 2019 in Canada is included
b Number of ticks tested: British Columbia (n=10), Alberta n=(0), Saskatchewan (n=0), Manitoba (n=3), Ontario (n=188–406 depending on pathogen), Québec (n=141), Newfoundland and Labrador (n=0), New Brunswick (n=194), Nova Scotia (n=169) and Prince Edward Island (n=2)