Table 3.
Detection of Borrelia burgdorferi sensu lato in Ixodes ticks collected from mammalian hosts in the Metchosin-Victoria-Vancouver-Maple Ridge, British Columbia area, 2013–2016.
| Mammal Species | Number of Borrelia burgdorferi-Positive Ticks/Number of Ticks Collected | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Hosts | Ixodes angustus | Ixodes cookei | Ixodes pacificus | Ixodes spinipalpis | Ixodes texanus | Infection Rate (%) | |||||||||||||
| L | N | M | F | L | N | F | L | N | M | F | L | N | M | F | N | F | |||
| American red squirrel, Tamiasciurus hudsonicus (Erxleben) | 4 | 0/0 | 0/2 | 1/3 | 3/18 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 4/23 (17) |
| American mink, Neovison vison (Schreber) | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/11 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/12 (17) |
| Brown rat, Rattus norvegicus (Berkenhout) | 2 | 0/0 | 0/0 | 0/0 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 2/2 (100) |
| Columbian black-tailed deer, Odocoileus hemionus columbianus (Richardson) | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 0/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/4 (0) |
| Cottontail rabbit, Sylvilagus floridanus (J.A. Allen) | 10 | 0/0 | 0/0 | 0/1 | 1/2 | 0/0 | 0/0 | 0/0 | 0/1 | 1/2 | 0/0 | 0/0 | 0/1 | 1/5 | 2/8 | 1/5 | 0/0 | 0/0 | 6/25 (24) |
| Deer mouse, Peromyscus maniculatus (Wagner) | 1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/3 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 | 2/5 (40) |
| Dog, domestic, Canis lupus familiaris (Linnaeus) | 4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 0/7 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/8 (0) |
| Douglas squirrel, Tamiasciurus douglasii (Bachman) | 5 | 0/0 | 0/0 | 1/3 | 3/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 4/8 (50) |
| Human, Homo sapiens (Linnaeus) | 6 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 | 0/4 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/6 (0) |
| Muskrat, Ondatra zibethicus (Linnaeus) | 1 | 0/3 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/5 (0) |
| Pacific raccoon, Procyon pacificus (Merriam) | 10 | 0/0 | 0/0 | 0/0 | 0/0 | 0/3 | 0/1 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/2 | 0/1 | 1/2 | 1/2 | 1/6 | 4/19 (21) |
| Snowshoe hare, Lepus americanus Erxleben | 2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/1 | 0/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/6 (17) |
| Striped Skunk, Mephitis mephitis (Schreber) | 4 | 0/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/1 | 2/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/2 | 0/0 | 2/11 (18) |
| Western gray squirrel, Sciurus griseus (Ord) | 5 | 0/0 | 0/0 | 0/0 | 2/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/1 | 1/1 | 0/1 | 0/0 | 0/0 | 1/2 | 0/0 | 0/0 | 5/9 (56) |
| Totals: 14 | 58 | 0/8 | 0/4 | 2/7 | 11/31 | 0/3 | 2/13 | 3/6 | 0/1 | 1/3 | 2/4 | 1/20 | 0/5 | 3/10 | 2/9 | 3/9 | 1/4 | 1/6 | 32/143 (22) |
L, larva(e); N, nymph(s); M, male(s); F, female(s); Bb-pos., Borrelia burgdorferi sensu lato-positive.