TABLE 1.
B. burgdorferi sensu lato genospecies in questing I. ricinus ticks collected in the years 1999 and 2000a
| Year or site | Stage | No. tested | No. (%) of ticks infected with:
|
No. (%) of UT | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| B. b.s.l. | B. afz. | B. ga. | B. va. | B. b.s.s | B. b.s.s./B. afz. | B. b.s.s/B. va. | B. ga./B. va. | ||||
| 1999 | |||||||||||
| 1 | Nymphs | 16 | 3 (19) | 2 (67) | 1 (33) | 0 | 0 | 0 | 0 | 0 | 0 |
| Adults | 50 | 9 (18) | 6 (67) | 2 (22) | 1 (11) | 0 | 0 | 0 | 0 | 0 | |
| 2 | Nymphs | 19 | 1 (5) | 1 (100) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Adults | 50 | 24 (48) | 9 (37) | 7 (29) | 5 (21) | 1 | 1 | 1 | 0 | 0 | |
| 3 | Nymphs | 20 | 3 (15) | 1 (33) | 0 | 1 (33) | 0 | 0 | 0 | 0 | 1 (33) |
| Adults | 50 | 24 (48) | 0 | 17 (71) | 5 (21) | 0 | 0 | 0 | 2 (8) | 0 | |
| 2000 | |||||||||||
| 1 | Nymphs | 50 | 14 (28) | 13 (93) | 0 | 0 | 0 | 0 | 0 | 0 | 1 (7) |
| Adults | 50 | 8 (16) | 7 (87) | 1 (13) | 0 | 0 | 0 | 0 | 0 | 0 | |
| 2 | Nymphs | 50 | 8 (16) | 6 (75) | 0 | 0 | 0 | 0 | 0 | 0 | 2 (25) |
| Adults | 50 | 15 (30) | 3 (20) | 4 (27) | 4 (27) | 0 | 1 (7) | 0 | 0 | 3 (20) | |
| 3 | Nymphs | 50 | 12 (24) | 2 (17) | 3 (25) | 1 (8) | 3 (25) | 1 (8) | 0 | 1 (8) | 1 (8) |
| Adults | 50 | 20 (40) | 1 (5) | 9 (45) | 2 (10) | 4 (20) | 1 (5) | 0 | 2 (10) | 1 (5) | |
a
B. b.s.l., Borrelia burgdorferi sensu lato; B. afz., B. afzelii; B. ga., B. garinii; B. va., B. valaisiana; B. b.s.s., B. burgdorferi sensu stricto. columns 9 to 11 present mixed infections. UT, untypeable amplicons using the DNA probes described in references 14 and 20.