Geographical distribution of hard ticks (Acari:Ixodidae) and tick-host associations in Benin, Burkina-Faso, Ivory-Coast and Togo

Yessinou, Roland Eric; Cazan, Cristina Daniela; Bonnet, Sarah; Farougou, Souaïbou; Mihalca, Andrei Daniel

doi:10.1016/j.actatropica.2022.106510

Cited by 8 publications

(3 citation statements)

References 117 publications

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“…Data on the distribution of tick‐borne pathogens are necessary for designing appropriate control measures and future approaches to more comprehensive surveillance (Gondard et al., 2017 ). Very few data exist on this topic in West Africa where a high diversity of tick species was recorded in Benin and Togo (Yessinou et al., 2022 ). Their presence and distribution can be explained by ecological and climatic conditions that are favourable or unfavourable for the development of ticks in certain countries.…”

Section: Discussionmentioning

confidence: 99%

New geographical records for tick‐borne pathogens in ticks collected from cattle in Benin and Togo

Yessinou

Cazan

Panait

et al. 2022

Veterinary Medicine & Sci

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Background Ticks are obligate hematophagous arthropods capable of transmitting a great variety of endemic and emerging pathogens causing diseases in animals and humans. Objectives The aim of this study was to investigate the presence of Bartonella spp., Rickettsia spp. , Borrelia burgdorferi sensu lato (s.l.) and Anaplasma phagocytophilum in ticks collected from cattle in Benin and Togo. Methods Overall, 396 (148 males, 205 females and 43 nymphs) ticks were collected from cattle in 17 districts (Benin and Togo) between 2019 and 2020. Ticks were pooled into groups of 2–6 ticks per pool according to individual host, location, species and developmental stage. The DNA of each pool was extracted for molecular screening. Results PCR results revealed that 20 tick pools were positive for Bartonella spp. (Benin and Togo) and 23 tick pools positive for Rickettsia spp. (Benin), while all pools were negative for A. phagocytophilum and B. burgdorferi s.l. Sequence analysis of positive Rickettsia samples revealed the presence of Rickettsia aeschlimannii . Conclusions The present study highlights the presence of zoonotic agents in ticks collected from cattle in Benin and Togo. This information will raise awareness of tick‐borne diseases among physicians and veterinarians, stimulate further studies to monitor these pathogens, and advise on necessary measures to control the spread of these zoonoses.

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Section: Discussionmentioning

confidence: 99%

New geographical records for tick‐borne pathogens in ticks collected from cattle in Benin and Togo

Yessinou

Cazan

Panait

et al. 2022

Veterinary Medicine & Sci

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“…Ticks are important vectors of viral, bacterial, and protozoan pathogens that can cause severe disease in humans and domestic animals, resulting in predicted annual economic losses upwards of $20 billion USD (Lew-Tabor and Rodriguez Valle, 2016). Additionally, individual tick species can transmit multiple pathogens, leading to coinfections in definitive hosts (Jongejan and Uilenberg, 2004;Walker et al, 2005;Yessinou et al, 2022;Diarra et al, 2023). There are many tick genera in Africa that transmit numerous high-impact pathogens for humans, domestic animals, and wildlife, including the causative agents of ehrlichiosis, anaplasmosis, rickettsioses, theileriosis, babesiosis, and heartwater (Springer et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

One Health in practice: Multi-season survey of ixodid tick species collected from domestic dogs in Chad

Cleveland,

Friedman,

Thompson

et al. 2024

Preprint

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Ticks are medically important vectors of pathogens, many of which are zoonotic or impact domestic animal and/or wildlife health. Climate change, landscape use, and increasing interactions between domestic animals, wildlife, and humans have resulted in changes in tick-host dynamics and the emergence of novel pathogens worldwide. Therefore, it is crucial to describe the host and geographic ranges of vector species to assess disease risk, particularly in areas where research is lacking. This task necessitates adopting a One Health approach. In sub-Saharan Africa, previous work on ticks has focused primarily on those species most relevant to domestic livestock or humans, highlighting a significant knowledge gap concerning species of ticks that infest peri-domestic animals in rural areas. The objective of this study was to investigate the species diversity of ticks on peri-domestic dogs in rural areas of Chad, Africa. From 2019-2022, we collected 3,412 ixodid ticks from 435 peri-domestic dogs from 23 villages in Chad, Africa during both dry and wet seasons. Ticks were identified to species using morphological techniques and/or molecular analyses of the 16S rRNA, 12S rRNA, and cytochrome oxidase I gene regions. We identified 11 species of ticks from dogs includingAmblyomma variegatum,Amblyomma marmoreum,Haemaphysalis leachi,aHaemaphysalissp.,Hyalomma impressum, Hyalomma truncatum, Rhipicephalus decoloratus, Rhipicephalus guilhoni, Rhipicephalus muhsamae, Rhipicephalus linnaei(=R. sanguineus‘tropical lineage’), and aRhipicephalussp. Several of these tick species are known vectors for important canine and zoonotic pathogens and some are more commonly associated with cattle hosts. Our results show that sampling ticks from peri-domestic dogs provides an opportunity to examine vectors that may infest domestic animals, agricultural animals, wildlife, and humans as hosts in an understudied area.HighlightsTick-borne diseases are significant concern across sub-Saharan AfricaLimited data on ticks of animals and people in Chad, AfricaA high diversity of tick species infested domestic dogs in ChadMany detected tick species associated with important pathogens

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“…For instance, some Amblyomma species, a vector of Rickettsia africae , and Rhipicephalus appendiculatus , a vector of Theileria parva , cause African bite fever and East Coast fever, respectively, a huge hurdle to the development of the livestock industry [ 1 , 13 – 15 ]. In parallel, ticks are known to feed on a large variety of vertebrate hosts including mammals, birds, reptiles and amphibians, but only a few studies have been performed on wild animals [ 16 – 20 ] since the first inventories [ 21 – 27 ].…”

Section: Introductionmentioning

confidence: 99%

Survey of ticks and tick-borne pathogens in wild chimpanzee habitat in Western Uganda

et al. 2023

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Background Ticks and tick-borne pathogens significantly impact both human and animal health and therefore are of major concern to the scientific community. Knowledge of tick-borne pathogens is crucial for prescription of mitigation measures. In Africa, much research on ticks has focused on domestic animals. Little is known about ticks and their pathogens in wild habitats and wild animals like the endangered chimpanzee, our closest relative. Methods In this study, we collected ticks in the forested habitat of a community of 100 chimpanzees living in Kibale National Park, Western Uganda, and assessed how their presence and abundance are influenced by environmental factors. We used non-invasive methods of flagging the vegetation and visual search of ticks both on human team members and in chimpanzee nests. We identified adult and nymph ticks through morphological features. Molecular techniques were used to detect and identify tick-borne piroplasmids and bacterial pathogens. Results A total of 470 ticks were collected, which led to the identification of seven tick species: Haemaphysalis parmata (68.77%), Amblyomma tholloni (20.70%), Ixodes rasus sensu lato (7.37%), Rhipicephalus dux (1.40%), Haemaphysalis punctaleachi (0.70%), Ixodes muniensis (0.70%) and Amblyomma paulopunctatum (0.35%). The presence of ticks, irrespective of species, was influenced by temperature and type of vegetation but not by relative humidity. Molecular detection revealed the presence of at least six genera of tick-borne pathogens (Babesia, Theileria, Borrelia, Cryptoplasma, Ehrlichia and Rickettsia). The Afrotopical tick Amblyomma tholloni found in one chimpanzee nest was infected by Rickettsia sp. Conclusions In conclusion, this study presented ticks and tick-borne pathogens in a Ugandan wildlife habitat whose potential effects on animal health remain to be elucidated. Graphical Abstract

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Geographical distribution of hard ticks (Acari:Ixodidae) and tick-host associations in Benin, Burkina-Faso, Ivory-Coast and Togo

Cited by 8 publications

References 117 publications

New geographical records for tick‐borne pathogens in ticks collected from cattle in Benin and Togo

New geographical records for tick‐borne pathogens in ticks collected from cattle in Benin and Togo

One Health in practice: Multi-season survey of ixodid tick species collected from domestic dogs in Chad

Survey of ticks and tick-borne pathogens in wild chimpanzee habitat in Western Uganda

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