Association between guilds of birds in the African-Western Palaearctic region and the tick species Hyalomma rufipes, one of the main vectors of Crimean-Congo hemorrhagic fever virus

Hoffman, Tove; Carra, Laura G.; Öhagen, Patrik; Fransson, Thord; Barboutis, Christos; Piacentini, Dario; Figuerola, Jordi; Kiat, Yosef; Onrubia, Alejandro; Jaenson, Thomas G. T.; Nilsson, Kenneth; Lundkvist, Åke; Olsén, Björn

doi:10.1016/j.onehlt.2021.100349

Cited by 16 publications

(16 citation statements)

References 42 publications

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“…Most of the tick-infested birds were long-distance migrants (98.0%). See Hoffman et al [ 39 ] for additional details and information about the distribution pattern of ticks on the bird species.…”

Section: Resultsmentioning

confidence: 99%

“…Only northward migrating birds were included in the study. See Hoffman et al 2021 [ 39 ] for additional details.…”

Section: Methodsmentioning

confidence: 99%

“…The DNA was eluted in DE buffer and stored at −20 °C. For additional details, see Hoffman et al 2021 [ 39 ].…”

Section: Methodsmentioning

confidence: 99%

“…Tick taxa and Hyalomma species were determined by PCR, using primers by Beati and Keirans [ 43 ] ( Table 1 ). See Hoffman et al 2021 [ 39 ] for further details. Morphological determination was not performed since identification of species level of immature ticks belonging to the tick complex H. marginatum , including the species H. rufipes and H. marginatum , is difficult and not recommended [ 46 ].…”

Section: Methodsmentioning

confidence: 99%

“…Maximum likelihood 12S rDNA phylogenies were built in MEGA7 [ 59 ], and tick sequences were grouped based on their position in the 12S rDNA phylogenies. See Hoffman et al 2021 [ 39 ] for details.…”

Section: Methodsmentioning

confidence: 99%

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Co-Occurrence of Francisella, Spotted Fever Group Rickettsia, and Midichloria in Avian-Associated Hyalomma rufipes

et al. 2022

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The migratory behavior of wild birds contributes to the geographical spread of ticks and their microorganisms. In this study, we aimed to investigate the dispersal and co-occurrence of Francisella and spotted fever group Rickettsia (SFGR) in ticks infesting birds migrating northward in the African-Western Palaearctic region (AWPR). Birds were trapped with mist nests across the Mediterranean basin during the 2014 and 2015 spring migration. In total, 575 ticks were collected from 244 birds. We screened the ticks for the species Francisella tularensis, the genus Francisella, and SFGR by microfluidic real-time PCR. Confirmatory analyses and metagenomic sequencing were performed on tick samples that putatively tested positive for F. tularensis during initial screenings. Hyalomma rufipes was the most common tick species and had a high prevalence of Francisella, including co-occurrence of Francisella and SFGR. Metagenomic analysis of total DNA extracted from two H. rufipes confirmed the presence of Francisella, Rickettsia, and Midichloria. Average nucleotide identity and phylogenetic inference indicated the highest identity of the metagenome-assembled genomes to a Francisella-like endosymbiont (FLE), Rickettsia aeschlimannii, and Midichloria mitochondrii. The results of this study suggest that (i) FLE- and SFGR-containing ticks are dispersed by northbound migratory birds in the AWPR, (ii) H. rufipes likely is not involved in transmission of F. tularensis in the AWPR, and (iii) a dual endosymbiosis of FLEs and Midichloria may support some of the nutritional requirements of H. rufipes.

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Section: Resultsmentioning

confidence: 99%

“…Only northward migrating birds were included in the study. See Hoffman et al 2021 [ 39 ] for additional details.…”

Section: Methodsmentioning

confidence: 99%

“…The DNA was eluted in DE buffer and stored at −20 °C. For additional details, see Hoffman et al 2021 [ 39 ].…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Co-Occurrence of Francisella, Spotted Fever Group Rickettsia, and Midichloria in Avian-Associated Hyalomma rufipes

et al. 2022

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Bidirectional tick transport by migratory birds of the African-Western Palearctic flyway over Turkish Thrace: observation of the current situation and future projection

Bacak,

Ozsemir,

Akyildiz

et al. 2023

Parasitol Res

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The climate niche of the invasive tick species Hyalomma marginatum and Hyalomma rufipes (Ixodidae) with recommendations for modeling exercises

Estrada-Peña

2023

Exp Appl Acarol

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The finding of immature stages of some Hyalomma spp. feeding on migratory birds in Europe is unexceptional. The reports of adults of Hyalomma in Europe (incl. the British Isles) after successful molting from immatures have increased in recent years. It has been claimed that the warming of the target territory could favor the populations of these invasive ticks. Although evaluations of the impact on health or measures of adaptation are on their way, the climate niches of these species remain undefined, preventing preventive policies. This study delineates such niches for both Hyalomma marginatum (2,729 collection points) and Hyalomma rufipes (2,573 collections) in their distribution area, together with 11,669 points in Europe where Hyalomma spp. are believed to be absent in field surveys. Niche is defined from daily data of temperature, evapotranspiration, soil humidity and air saturation deficit (years 1970–2006). A set of eight variables (annual/seasonal accumulated temperature and vapor deficit) has the maximum discriminatory power separating the niches of both Hyalomma and a negative dataset, with an accuracy near 100%. The sites supporting H. marginatum or H. rufipes seem to be controlled by the joint action of the amount of water in the air (accounting for mortality) and the accumulated temperature (regulating development). The use of accumulated annual temperature as the only variable for predictive purposes of colonization of Hyalomma spp. looks unreliable, as far as values of water in air are excluded.

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Association between guilds of birds in the African-Western Palaearctic region and the tick species Hyalomma rufipes, one of the main vectors of Crimean-Congo hemorrhagic fever virus

Cited by 16 publications

References 42 publications

Co-Occurrence of Francisella, Spotted Fever Group Rickettsia, and Midichloria in Avian-Associated Hyalomma rufipes

Co-Occurrence of Francisella, Spotted Fever Group Rickettsia, and Midichloria in Avian-Associated Hyalomma rufipes

Bidirectional tick transport by migratory birds of the African-Western Palearctic flyway over Turkish Thrace: observation of the current situation and future projection

The climate niche of the invasive tick species Hyalomma marginatum and Hyalomma rufipes (Ixodidae) with recommendations for modeling exercises

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