Table 5.
Detection of Borrelia burgdorferi sensu lato in Ixodes ticks collected from mammalian hosts in the London-St. Thomas-Simcoe-Toronto, Ontario area, 2013–2016.
| Mammal Species | Number of Borrelia burgdorferi-Positive Ticks/Number of Ticks Collected | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Hosts | Ixodes angustus | Ixodes cookei | Ixodes scapularis | Ixodes texanus | Infection Rate (%) | |||||||||
| N | M | F | N | M | F | L | N | M | F | M | F | |||
| Dog, domestic, Canis lupus familiaris Linnaeus | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/5 | 0/0 | 0/0 | 2/5 (40) |
| Cat, domestic, Felis silvestris catus Linnaeus | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/3 | 0/0 | 0/0 | 1/3 (33) |
| Striped skunk, Mephitis mephitis (Schreber) | 4 | 0/0 | 0/0 | 0/0 | 1/2 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/5 (40) |
| Weasel, Mustela erminea Linnaeus | 2 | 0/0 | 0/0 | 0/0 | 1/1 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/4 (50) |
| Eastern raccoon, Procyon lotor lotor Linnaeus | 5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/5 | 6/8 | 6/13 (46) |
| Human, Homo sapiens Linnaeus | 4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/2 | 1/2 | 0/0 | 0/0 | 1/4 (25) |
| American red fox, Vulpes vulpes fulvus Desmarest | 3 | 0/0 | 0/0 | 0/0 | 0/3 | 0/0 | 1/2 | 0/0 | 0/0 | 0/1 | 2/3 | 0/0 | 0/0 | 3/9 (33) |
| American red squirrel, Tamiasciurus hudsonicus (Erxleben) | 2 | 0/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 2/5 (40) |
| Groundhog, Marmota monax (Linnaeus) | 2 | 0/0 | 0/0 | 0/0 | 1/2 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/5 (40) |
| Northern short-tailed shrew, Blarina brevicauda (Say) | 1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/3 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 3/5 (60) |
| Cottontail rabbit, Sylvilagus floridanus (J.A. Allen) | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 | 0/2 (0) |
| Eastern chipmunk, Tamias striatus (Linnaeus) | 4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 3/5 | 0/0 | 0/0 | 0/0 | 0/0 | 3/6 (50) |
| White-tailed deer, Odocoileus virginianus Zimmermann | 1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 1/3 | 0/0 | 0/0 | 1/4 (25) |
| Horse, Equus caballus Linnaeus | 1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/2 | 0/0 | 0/0 | 1/2 (50) |
| Muskrat, Ondatra zibethicus (Linnaeus) | 1 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/2 (0) |
| Totals: 15 | 36 | 0/3 | 1/1 | 0/0 | 3/8 | 0/0 | 4/11 | 2/4 | 5/11 | 1/4 | 7/19 | 0/5 | 6/8 | 29/74 (39) |
L, larva(e); N, nymph(s); M, male(s); F, female(s); Bb-pos, Borrelia burgdorferi sensu lato-positive.