AP92-like Crimean-Congo Hemorrhagic Fever Virus in<i>Hyalomma aegyptium</i>Ticks, Algeria

Kautman, Matej; Tiar, Ghoulem; Papa, Anna; Široký, Pavel

doi:10.3201/eid2202.151528

Cited by 44 publications

(32 citation statements)

References 10 publications

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“…While recent reports have demonstrated CCHFv detection in H. aegyptium removed from T. graeca captured in Algeria [23] and in Syria [39], in our study, real time RT-PCR analysis failed to detect the presence of CCHFv RNA, indicating that adult H. aegyptium were not carrying CCHFv. Based on the large number of tick and tortoise samples tested (>1000 ticks and >150 tortoises), our negative results strongly suggest the absence of CCHFv in H. aegyptium.…”

Section: Resultscontrasting

confidence: 99%

“…Based on the large number of tick and tortoise samples tested (>1000 ticks and >150 tortoises), our negative results strongly suggest the absence of CCHFv in H. aegyptium. Therefore, our findings are in contradiction with those from previous studies [23,39]. Similar results were reported by another study performed in endemic foci for CCHF in Turkey, showing the absence of CCHFv in H. aegyptium collected from tortoises (T. graeca) [24].…”

Section: Resultscontrasting

confidence: 92%

“…Recently, CCHFv has been detected in Hyalomma aegyptium collected from spur-thighed tortoises (Testudo graeca) captured in Algeria [23] and in Syria [39]. Thus, it is of particular epidemiological interest to study the impact of the high infestation intensity in T. graeca by H. aegyptium on the potential transmission of zoonotic pathogens such as CCHFv in the Mediterranean Basin.…”

Section: Introductionmentioning

confidence: 99%

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Absence of Crimean-Congo haemorrhagic fever virus in the tickHyalomma aegyptiumparasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia

Dachraoui

Najjar

Younsi³

et al. 2019

Parasite

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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.

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Section: Resultscontrasting

confidence: 99%

Section: Resultscontrasting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Absence of Crimean-Congo haemorrhagic fever virus in the tickHyalomma aegyptiumparasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia

Dachraoui

Najjar

Younsi³

et al. 2019

Parasite

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“…For example, recent studies have documented the circulation of Europe-2 related strains in the Middle East (4) and North Africa (6). Furthermore, a closely related strain to Africa-3 genotype was reported from Spain (2).…”

Section: Discussionmentioning

confidence: 99%

A Case Report of Crimean-Congo Hemorrhagic Fever Virus Europe-1 Genotype in the West of Iran

Fazlalipour

Mohsenpour

Baniasadi

et al. 2017

Iran Red Crescent Med J

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Introduction: Crimean-Congo hemorrhagic fever (CCHF) is a fatal tick-borne viral zoonosis. CCHF virus (CCHFV) has 7 distinct genotypes with a determined geographical distribution pattern. However, similar genotypes have been reported from distant geographical areas. Case Presentation: On 4 June 2016, a CCHF suspected case from Sanandaj city, Kurdistan province of Iran, was confirmed with CCHFV infection by RT-PCR test. The phylogenetic analyses showed a strain belonging to Europe-1 genotype. Conclusions: Considering the similarity of Iranian strain of Europe-1 genotype to the strains from Turkey and Russia, it could be claimed that Europe-1 genotype has introduced to Iran from European countries. However, to have a better understanding about the circulation of CCHFV Europe-1 genotype in Iran, further investigations should be performed.

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“…Ticks were investigated for CCHFV infection using nested RT-PCR, which detected that 16 ticks were positive for CCHFV infection. A total of 15 amplicons were sequenced, which identified the AP92 strain of CCHFV in H. aegyptium ticks collected from tortoises [194].…”

Section: Algeriamentioning

confidence: 99%

Systematic Review of Important Viral Diseases in Africa in Light of the ‘One Health’ Concept

et al. 2020

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Emerging and re-emerging viral diseases are of great public health concern. The recent emergence of Severe Acute Respiratory Syndrome (SARS) related coronavirus (SARS-CoV-2) in December 2019 in China, which causes COVID-19 disease in humans, and its current spread to several countries, leading to the first pandemic in history to be caused by a coronavirus, highlights the significance of zoonotic viral diseases. Rift Valley fever, rabies, West Nile, chikungunya, dengue, yellow fever, Crimean-Congo hemorrhagic fever, Ebola, and influenza viruses among many other viruses have been reported from different African countries. The paucity of information, lack of knowledge, limited resources, and climate change, coupled with cultural traditions make the African continent a hotspot for vector-borne and zoonotic viral diseases, which may spread globally. Currently, there is no information available on the status of virus diseases in Africa. This systematic review highlights the available information about viral diseases, including zoonotic and vector-borne diseases, reported in Africa. The findings will help us understand the trend of emerging and re-emerging virus diseases within the African continent. The findings recommend active surveillance of viral diseases and strict implementation of One Health measures in Africa to improve human public health and reduce the possibility of potential pandemics due to zoonotic viruses.

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AP92-like Crimean-Congo Hemorrhagic Fever Virus inHyalomma aegyptiumTicks, Algeria

Cited by 44 publications

References 10 publications

Absence of Crimean-Congo haemorrhagic fever virus in the tickHyalomma aegyptiumparasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia

Absence of Crimean-Congo haemorrhagic fever virus in the tickHyalomma aegyptiumparasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia

A Case Report of Crimean-Congo Hemorrhagic Fever Virus Europe-1 Genotype in the West of Iran

Systematic Review of Important Viral Diseases in Africa in Light of the ‘One Health’ Concept

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