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Absence of Crimean-Congo haemorrhagic fever virus in the tick Hyalomma aegyptium parasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia.
Parasite 2019; 26:35P

Abstract

Free-ranging spur-thighed tortoises Testudo graeca, captured in different habitat types of Northern Tunisia from March to April 2017, were examined for tick infestation: 134/147 (91%) were infested. The overall infestation intensity and abundance was 8.5 and 7.8, respectively. From these tortoises, 1174 ticks were collected, of which 10% (n = 120) taken from 18 randomly-selected tortoises were identified at the species level; the remaining ticks were examined for the presence of Crimean-Congo haemorrhagic fever virus (CCHFv) by real time RT-PCR. Only adult Hyalomma aegyptium were found, suggesting a high degree of host specificity to tortoises. No CCHFv was detected in ticks. Considering the absence of CCHFv in Hyalomma aegyptium infesting its main host, the spur-thighed tortoise, this tick species is unlikely to play a major role in the epidemiology of CCHF. Therefore, more studies are needed to investigate the circulation of this arbovirus between livestock and other tick species from North Africa.

Authors+Show Affiliations

Institut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.Institut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.Institut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia - Marwell Wildlife Colden Common, Thompsons Lane, Winchester, SO21 1JH Hampshire, UK.Institut Supérieur des Sciences Biologiques Appliquées de Tunis, Université Tunis El Manar, 9 Avenue Zouhaïer Essafi, 1009 Tunis, Tunisia.Public Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.Marwell Wildlife Colden Common, Thompsons Lane, Winchester, SO21 1JH Hampshire, UK.Public Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.Public Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.Institut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31198174

Citation

Fares, Wasfi, et al. "Absence of Crimean-Congo Haemorrhagic Fever Virus in the Tick Hyalomma Aegyptium Parasitizing the Spur-thighed Tortoise (Testudo Graeca) in Tunisia." Parasite (Paris, France), vol. 26, 2019, p. 35.
Fares W, Dachraoui K, Najjar C, et al. Absence of Crimean-Congo haemorrhagic fever virus in the tick Hyalomma aegyptium parasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia. Parasite. 2019;26:35.
Fares, W., Dachraoui, K., Najjar, C., Younsi, H., Findlay-Wilson, S., Petretto, M., ... Zhioua, E. (2019). Absence of Crimean-Congo haemorrhagic fever virus in the tick Hyalomma aegyptium parasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia. Parasite (Paris, France), 26, p. 35. doi:10.1051/parasite/2019036.
Fares W, et al. Absence of Crimean-Congo Haemorrhagic Fever Virus in the Tick Hyalomma Aegyptium Parasitizing the Spur-thighed Tortoise (Testudo Graeca) in Tunisia. Parasite. 2019;26:35. PubMed PMID: 31198174.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Absence of Crimean-Congo haemorrhagic fever virus in the tick Hyalomma aegyptium parasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia. AU - Fares,Wasfi, AU - Dachraoui,Khalil, AU - Najjar,Chawki, AU - Younsi,Hend, AU - Findlay-Wilson,Stephen, AU - Petretto,Marie, AU - Dowall,Stuart, AU - Hewson,Roger, AU - Zhioua,Elyes, Y1 - 2019/06/14/ PY - 2019/04/14/received PY - 2019/05/28/accepted PY - 2019/6/15/entrez PY - 2019/6/15/pubmed PY - 2019/8/15/medline SP - 35 EP - 35 JF - Parasite (Paris, France) JO - Parasite VL - 26 N2 - Free-ranging spur-thighed tortoises Testudo graeca, captured in different habitat types of Northern Tunisia from March to April 2017, were examined for tick infestation: 134/147 (91%) were infested. The overall infestation intensity and abundance was 8.5 and 7.8, respectively. From these tortoises, 1174 ticks were collected, of which 10% (n = 120) taken from 18 randomly-selected tortoises were identified at the species level; the remaining ticks were examined for the presence of Crimean-Congo haemorrhagic fever virus (CCHFv) by real time RT-PCR. Only adult Hyalomma aegyptium were found, suggesting a high degree of host specificity to tortoises. No CCHFv was detected in ticks. Considering the absence of CCHFv in Hyalomma aegyptium infesting its main host, the spur-thighed tortoise, this tick species is unlikely to play a major role in the epidemiology of CCHF. Therefore, more studies are needed to investigate the circulation of this arbovirus between livestock and other tick species from North Africa. SN - 1776-1042 UR - https://www.unboundmedicine.com/medline/citation/31198174/Absence_of_Crimean_Congo_haemorrhagic_fever_virus_in_the_tick_Hyalomma_aegyptium_parasitizing_the_spur_thighed_tortoise__Testudo_graeca__in_Tunisia_ L2 - http://publications.edpsciences.org/10.1051/parasite/2019036 DB - PRIME DP - Unbound Medicine ER -