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Volume 28, Number 2—February 2022

Widespread Detection of Multiple Strains of Crimean-Congo Hemorrhagic Fever Virus in Ticks, Spain

María Paz Sánchez-SecoComments to Author , María José Sierra, Agustín Estrada-Peña, Félix Valcárcel, Ricardo Molina, Eva Ramírez de Arellano, Angeles Sonia Olmeda, Lucía García San Miguel, Maribel Jiménez, Luis J. Romero, Anabel Negredo, and Group for CCHFv Research
Author affiliations: CIBER Enfermedades Infecciosas (CIBERINFEC), Madrid, Spain (M.P. Sánchez-Seco, M.J. Sierra, R. Molina, A. Negredo); Universidad de Zaragoza, Zaragoza, Spain (A. Estrada-Peña); Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid (F. Valcárcel); Instituto de Salud Carlos III, Madrid (E. Ramírez de Arellano, M. Jiménez); Universidad Complutense de Madrid, Madrid (A.S. Olmeda); Ministerio de Sanidad, Consumo y Bienestar, Madrid (L. García San Miguel); Ministerio de Agricultura, Alimentación y Pesca, Madrid (L.J. Romero)

Main Article

Table 3

Positive pools of ticks and genotypes of CCHFV, according to small segment sequences, detected in ticks collected while they were feeding on ungulates, Spain*

Region (province) No. pools
(no. ticks)
No. (%) positive pools Tick species found with
CCHFV (no. pools)
Animals found with CCHFV-infected ticks (no.) Genotypes†
Madrid (Madrid) 90 (230) 7 (7.7) Hyaloma lusitanicum (6), Dermacentor marginatus (1)‡ Mouflon (1), wild boar (1), red deer (1) IV
Castile and León (Avila) 338 (829) 1 (0.3) Rhipicephalus annulatus (1) Fallow deer (1) IV
Castile-La Mancha (Toledo) 642 (1,817) 76 (11.8) H. lusitanicum (76) Red deer§ III
Extremadura (Cáceres)
2,889 (7,917)
44 (1.5)
H. lusitanicum (42), Ixodes ricinus (2)¶
Red deer (22), wild boar (2)
Total 3,959 (10,793) 128 (3.2) NA Red deer (>23), wild boar (3), fallow deer (1), mouflon (1) I, III, IV

*CCHFV, Crimean-Congo hemorrhagic fever virus; NA, not applicable. †Genotypes: I, West Africa (Africa 1); II, Central Africa (Africa 2); III, South and West Africa (Africa 3); IV, Middle East/Asia, divided into groups Asia 1 and Asia 2; V, Europe/Turkey (Europe 1); VI, Greece (Europe 2). ‡Collected from wild boar. §In Castile-La Mancha, ticks of the same species but collected from different animals were mixed in a single tube, so it was not possible to determine the number of animals with positive ticks. ¶Collected from red deer.

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Page created: December 15, 2021
Page updated: January 22, 2022
Page reviewed: January 22, 2022
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