Table 3.
SFGR minimum field infection rates (MFIR) for ticks collected from four southwestern provinces of Chungcheongnam, Chungcheongbuk, Jeollanam and Jeollabuk in the Republic of Korea during 2013 by province
| Province | Species | Stage | No. of ticks (No. of tested pools) | nPCR positive no. of Rickettsia sp. (MFIR, %)a | |
|---|---|---|---|---|---|
| 17 kDa | ompA | ||||
| Chungcheongnam | H. longicornis | Larvab | 533 (22) | 1 (0.19) | 1 (0.19) |
| Nymphc | 16 (9) | 0 | 0 | ||
| Adult (male)d | 1 (1) | 0 | 0 | ||
| Adult (female)d | 22 (10) | 0 | 0 | ||
| H. flava | Larva | 475 (17) | 0 | 0 | |
| Nymph | 30 (8) | 0 | 0 | ||
| Adult (male) | 5 (2) | 0 | 0 | ||
| Adult (female) | 3 (2) | 0 | 0 | ||
| I. nipponensis | Larva | 379 (13) | 0 | 0 | |
| Nymph | 3 (2) | 0 | 0 | ||
| Adult (male) | 5 (3) | 1 (20.00) | 1 (20.00) | ||
| Adult (female) | 6 (2) | 1 (16.66) | 1 (16.66) | ||
| Subtotal | 1,478 (91) | 3 (0.20) | 3 (0.20) | ||
| Chungcheongbuk | H. longicornis | Larva | 147 (6) | 0 | 0 |
| Nymph | 2 (2) | 0 | 0 | ||
| Adult (female) | 3 (2) | 0 | 0 | ||
| H. flava | Larva | 176 (5) | 0 | 0 | |
| Nymph | 1 (1) | 0 | 0 | ||
| I. nipponensis | Larva | 2 (1) | 0 | 0 | |
| Subtotal | 331 (17) | 0 | 0 | ||
| Jeollanam | H. longicornis | Larva | 3,314 (70) | 34 (1.03) | 31 (0.94) |
| Nymph | 103 (18) | 7 (6.79) | 6 (5.82) | ||
| Adult (male) | 6 (4) | 4 (66.66) | 4 (66.66) | ||
| Adult (female) | 20 (11) | 2 (10.00) | 2 (10.00) | ||
| H. flava | Larva | 401 (19) | 1 (0.25) | 0 | |
| Nymph | 105 (18) | 0 | 0 | ||
| Adult (male) | 4 (3) | 0 | 0 | ||
| Adult (female) | 11 (8) | 0 | 0 | ||
| I. nipponensis | Larva | 18 (2) | 1 (5.55) | 0 | |
| Adult (male) | 5 (3) | 2 (40.00) | 2 (40.00) | ||
| Adult (female) | 8 (5) | 2 (25.00) | 2 (25.00) | ||
| Subtotal | 3,995 (161) | 53 (1.33) | 47 (1.18) | ||
| Jeollabuk | H. longicornis | Larva | 302 (11) | 2 (0.66) | 1 (0.33) |
| Nymph | 2 (2) | 1 (50.00) | 1 (50.00) | ||
| H. flava | Larva | 239 (9) | 0 | 0 | |
| Nymph | 127 (11) | 0 | 0 | ||
| Adult (male) | 2 (2) | 0 | 0 | ||
| Adult (female) | 3 (3) | 0 | 0 | ||
| I. nipponensis | Larva | 2 (1) | 1 (50.00) | 1 (50.00) | |
| Nymph | 2 (2) | 0 | 0 | ||
| Adult (male) | 1 (1) | 0 | 0 | ||
| Subtotal | 680 (42) | 4 (0.59) | 3 (0.44) | ||
| Total | 6,484 (311) | 60 (0.93) | 53 (0.82) | ||
aMFIR (minimum field infection rate/100 ticks) = no. of positive pools/no. of examined ticks in pools × 100, by species and stage of development
b1–69 larvae/pool
c1–25 nymphs/pool
d1–5 adults/pool