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Volume 30, Number 12—December 2024
Dispatch
Transboundary Movement of Yezo Virus via Ticks on Migratory Birds, Japan, 2020–2021
Ayano Nishino, Kango Tatemoto, Keita Ishijima, Yusuke Inoue, Eun-sil Park, Tsukasa Yamamoto, Masakatsu Taira, Yudai Kuroda, Milagros Virhuez-Mendoza, Michiko Harada, Noboru Nakamura, Gen Morimoto, Hiroki Yamaguchi, Takuma Ariizumi, Ai Takano, Hiroshi Shimoda, Keita Matsuno, and Ken Maeda
Table 1
Virus prevalence in tick species collected in an investigation of transboundary movement of Yezo virus via ticks on migratory birds, Japan, 2020–2021
| Species |
No. ticks examined |
No. pools examined |
No. positive pools |
Minimum infection rate, % |
| Ixodes persulcatus | ||||
| Larva | 1,727 | 193 | 3 | 0.2 |
| Nymph |
596 |
137 |
5 |
0.8 |
| I. pavlovskyi | ||||
| Larva | 169 | 30 | 0 | 0 |
| Nymph |
34 |
19 |
0 |
0 |
| I. turdus | ||||
| Larva | 0 | 0 | 0 | 0 |
| Nymph |
1 |
1 |
0 |
0 |
| Haemaphysalis megaspinosa | ||||
| Larva | 3 | 2 | 0 | 0 |
| Nymph |
0 |
0 |
0 |
0 |
| H. concinna | ||||
| Larva | 3 | 2 | 0 | 0 |
| Nymph |
1 |
1 |
0 |
0 |
| Total | 2,534 | 385 | 8 | 0.3 |
Page created: November 15, 2024
Page updated: November 21, 2024
Page reviewed: November 21, 2024
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