Volume 30, Number 5—May 2024
Research Letter
Crimean-Congo Hemorrhagic Fever Virus in Ticks Collected from Cattle, Corsica, France, 2023
Paloma Kiwan, Shirley Masse, Geraldine Piorkowski, Nazli Ayhan, Morena Gasparine, Laurence Vial, Remi N. Charrel, Xavier de Lamballerie, and Alessandra Falchi
Table
Description of Crimean-Congo hemorrhagic fever virus in tick pools collected from cattle, Corsica, France, 2023*
| Cattle ID nos. | Cattle origin | Collection date | CCHFV–positive pool nos. | CCHFV assay, Ct |
Tick species | Tick sex | No. ticks per pool | |
|---|---|---|---|---|---|---|---|---|
| L segment | S segment | |||||||
| 2478 |
Coggia |
2022 Sep 27 |
417 |
IND |
IND |
Haemaphysalis punctata |
F |
1 |
| 6069 |
Coggia |
2022 Sep 27 |
418 |
IND |
IND |
H. punctata |
M |
1 |
| 4376 | Casaglione | 2023 May 9 | 1252 | IND | IND | Rhipicephalus bursa | M | 6 |
| 1253 |
IND |
IND |
R. bursa |
M |
6 |
|||
| 4371 |
Casaglione |
2023 May 9 |
1233 |
40.8 |
IND |
Hyalomma marginatum |
M |
6 |
| 4039 | Porto-Vecchio | 2023 May 9 | 1204 | 35.9 | IND | R. bursa | M | 6 |
| 1205 | 34.7 | IND | R. bursa | F | 6 | |||
| 1206 | 34 | IND | R. bursa | F | 6 | |||
| 1207 | 31.9 | 40 | R. bursa | M | 6 | |||
| 1208 | 34.2 | IND | R. bursa | M | 6 | |||
| 1209 | 33.7 | IND | R. bursa | F | 6 | |||
| 1210 | 33.5 | IND | R. bursa | M | 6 | |||
| 1211 | 32.9 | IND | Hyalomma marginatum | M | 6 | |||
| 1212 | 34.7 | 40 | R. bursa | M | 6 | |||
| 1213 | 33.2 | IND | Hyalomma marginatum | F | 6 | |||
| 1214 | 33.1 | IND | R. bursa | F | 6 | |||
| 1215 | 33.8 | IND | R. bursa | F | 6 | |||
| 1218 | 34.2 | IND | Hyalomma marginatum | M | 4 | |||
| 1219 | 35 | IND | Hyalomma marginatum | F | 6 | |||
| 1220 | 35.1 | IND | Hyalomma marginatum | M | 3 | |||
| 1221 | 34.1 | IND | R. bursa | M | 6 | |||
| 1222 | 36.5 | IND | R. bursa | M | 6 | |||
| 1223 | 35.7 | IND | Rhipicephalus sanguineus | M | 1 | |||
| 1224 |
37.5 |
IND |
R. bursa |
F |
1 |
|||
| Total | 24 pools | 119 | ||||||
*Pools of ticks were tested with quantitative reverse transcription PCR of the L and S segments of CCHFV RNA. A total of 24 pools comprising 119 ticks were tested CCHFV-positive from 5 animals. CCHFV, Crimean-Congo hemorrhagic fever virus; Ct, cycle threshold; ID, identification; IND, indeterminate (weakly positive); L, large; S, small.
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