Table 1.
Proportion of small mammals infested by ticks or TBEV-seropositive, according to small mammal species, year, and season. The proportion of small mammals infested by ticks was calculated by dividing the individuals found to be infested by ticks (respectively TBEV-seropositive) for at least one capture session per season by the number inspected for ticks (respectively tested for TBEV antibodies). The proportion of small mammals being TBEV-seropositive was calculated by dividing the individuals found to be TBEV-seropositive for at least one capture session per season by the number tested for TBEV antibodies. Season 1: early April–early May, Season 2: early June–early July, Season 3: early September–early October.
| Year | Season | No. Infested by Ticks/No. Inspected (%) | No. TBEV-Positive/No. Tested (%) | ||||
|---|---|---|---|---|---|---|---|
| Tot | Myodes | Apodemus | Tot | Myodes | Apodemus | ||
| 2012 | Season 1 | 37/104 (35.6) | 24/72 (33.3) | 13/32 (40.6) | 4/95 (4.2) | 2/65 (3.1) | 2/30 (6.7) |
| Season 2 | 158/359 (44.0) | 54/182 (29.7) | 104/177 (58.8) | 11/349 (3.2) | 5/178 (2.8) | 6/171 (3.5) | |
| Season 3 | 28/121 (23.1) | 22/93 (23.7) | 6/28 (21.4) | 5/97 (5.2) | 4/75 (5.3) | 1/22 (4.5) | |
| 2013 | Season 1 | 2/16 (12.5) | 0/4 (0) | 2/12 (16.7) | 0/16 (0) | 0/4 (0) | 0/12 (0) |
| Season 2 | 11/11 (100) | 3/3 (100) | 8/8 (100) | 1/10 (10.0) | 0/3 (0) | 1/7 (14.3) | |
| Season 3 | 8/10 (80.0) | 2/3 (66.7) | 6/7 (85.7) | 0/10 (0) | 0/3 (0) | 0/7 (0) | |
| 2014 | Season 1 | 4/7 (57.1) | 1/1 (100) | 3/6 (50) | 0/7 (0) | 0/1 (0) | 0/6 (0) |
| Season 2 | 65/69 (94.2) | 17/20 (85.0) | 48/49 (98.0) | 0/60 (0) | 0/16 (0) | 0/44 (0) | |
| Season 3 | 11/20 (55.0) | 8/12 (66.7) | 3/8 (37.5) | 1/20 (5.0) | 1/12 (8.3) | 0/8 (0) | |