Abstract:
:Tick-borne diseases (TBD) occur in many temperate countries and are economically important in most tropical and subtropical areas, affecting dairy and beef cattle, as well as small ruminants. Four major tick-borne diseases have been detected in eastern and southern Africa: East Coast fever (ECF) caused by Theileria parva, Theiler 1904, anaplasmosis caused by either Anaplasma marginale, Theiler 1910, Anaplasma centrale, Theiler 1911, or Anaplasma ovis, Bevan 1912, babesiosis caused by Babesia bovis, Babes 1988 and Babesia bigemina, Smith & Kilborne 1893, and heartwater caused by Ehrlichia ruminantium Cowdry 1925. A cross-sectional survey was undertaken to determine the antibody prevalence of these TBDs and to identify the risk factors for TBD infections in the Union of the Comoros. In 2016 and 2017, 903 individual animal serum samples were collected from 429 separate farms, where the farmers answered individual questionnaires. The antibody prevalence of anaplasmosis, babesiosis (B. bigemina) and heartwater was determined by enzyme-linked immunosorbent assays (ELISA) and the antibody prevalence of ECF was assessed using an immunofluorescence antibody test (IFAT). The relationship between TBD seropositivity and livestock-related variables was assessed by multivariate analyses with standard logistic regression models. The results showed that these four TBDs were present in the Union of the Comoros with a global antibody prevalence of 15% (95% CI [12.7%; 17.3%]) for anaplasmosis, 9.2% (95% CI [6.5%, 11.9%]) for B. bigemina babesiosis, 5.3% (95% CI [3.2%, 7.4%]) for ECF and 4.6% (95% CI [3.2%, 6%]) for heartwater. We compared these findings with the abundance and distribution of several tick species known to be TBD vectors and we found a significant correlation between Rhipicephalus appendiculatus and ECF, and between Amblyomma variegatum and heartwater. We also found that two major variables were significantly correlated with B. bigemina antibody prevalence ("island" and "breeding area"), four variables were significantly correlated with anaplasmosis antibody seroprevalence ("island", "number of cattle per farmer", "number of farmers per village" and "breeding area"), two were significantly correlated with ECF antibody prevalence ("number of farmers in village" and "presence of ticks"), and three were significantly correlated with heartwater ("island", "number of cattle per farmer" and "number of farmers in the village"). Our findings confirmed livestock exposure to the four targeted TBDs of major concern for livestock development. Consequently, raising farmers' awareness and setting up a period of quarantine should be considered a priority.
journal_name
Ticks Tick Borne Disjournal_title
Ticks and tick-borne diseasesauthors
Boucher F,Moutroifi Y,Peba B,Ali M,Moindjie Y,Ruget AS,Abdouroihamane S,Madi Kassim A,Soulé M,Charafouddine O,Cêtre-Sossah C,Cardinale Edoi
10.1016/j.ttbdis.2019.101283subject
Has Abstractpub_date
2020-01-01 00:00:00pages
101283issue
1eissn
1877-959Xissn
1877-9603pii
S1877-959X(18)30506-5journal_volume
11pub_type
杂志文章abstract::Anaplasma species are obligate intracellular rickettsial pathogens that affect the health of humans and animals. In this study, we investigated the presence and frequency of Anaplasma species by 16S rRNA PCR-RLB, RFLP, and DNA sequencing in 200 apparently healthy cattle. Anaplasma spp. overall infection rate was 38.5 ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101604
更新日期:2021-01-01 00:00:00
abstract::Animal production has a key role in global economic development and food security. Ticks, specifically Rhipicephalus microplus cause substantial economic and health impacts on more than eighty percent of the world cattle population. Though synthetic acaricides play a major role in tick management, their injudicious us...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2021.101655
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abstract::This is the first reported case of Babesia sp. in Antarctic penguins, specifically a population of Chinstrap penguins (Pygoscelis antarctica) in the Vapour Col penguin rookery in Deception Island, South Shetlands, Antarctica. We collected peripheral blood from 50 adult and 30 chick Chinstrap penguins. Examination of t...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.02.006
更新日期:2016-04-01 00:00:00
abstract::Tick-borne encephalitis (TBE) is the most important viral infection transmitted by ticks in Central Europe. In Germany, where TBE was classified as a notifiable disease in 2001, a highly variable number of clinically apparent human cases was reported in the last few years, ranging from the lowest number of 238 in 2007...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2009.11.002
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abstract::Thymol is a monoterpene present in plants of the families Lamiaceae, Verbenaceae and Apiaceae. Despite its proven acaricidal activity, little is known about the mechanism of action of thymol in ticks. Thus, the aim of this study was to perform a morpho-histochemical analysis of the synganglion and salivary glands of p...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.11.003
更新日期:2019-02-01 00:00:00
abstract::Previous studies revealed that the Pacific Coast tick (Dermacentor occidentalis) is infected occasionally with the agents of Lyme disease (Borrelia burgdorferi) or human granulocytic anaplasmosis (Anaplasma phagocytophilum) and that it is an inefficient experimental vector of B. burgdorferi. The relationship of the pa...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2010.09.004
更新日期:2010-12-01 00:00:00
abstract::This study investigated the first outbreak of oriental theileriosis in a herd of beef cattle in South Australia using a newly established multiplexed tandem PCR (MT-PCR) to identify, differentiate and quantitate the four genotypes (buffeli, chitose, ikeda and type 5) of Theileria orientalis recognised to occur in Aust...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2015.04.012
更新日期:2015-07-01 00:00:00
abstract::Complement is a key first line innate host defense system in the blood of vertebrates. Upon activation, this powerful defense mechanism can elicit inflammatory responses, lyse non-self-cells, or mark them for opsonophagocytic removal. Blood-feeding arthropods thus require the ability to block host complement activatio...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101354
更新日期:2020-03-01 00:00:00
abstract::Equine piroplasmosis is one of the most significant tick-borne disease of equids. The prevalence of this disease in donkeys of semi-arid Kenya remains largely unexplored. The primary objective of this study was to demonstrate the extent to which donkeys in Nuu division, Kenya have been exposed to the haemoprotozoans B...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2015.05.015
更新日期:2015-07-01 00:00:00
abstract::Coxiella-like bacteria are a large group of yet-to-isolate and characterize bacteria phylogenetically close to the agent of Q fever, Coxiella burnetii, and often associated with ixodid ticks worldwide. This study was designed to assess the presence of Coxiella-like endosymbionts (CLE) in ticks and to describe their ge...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101493
更新日期:2020-09-01 00:00:00
abstract::Anaplasma phagocytophilum is an obligate intracellular and tick-transmitted bacterium, which causes granulocytic anaplasmosis in animals and humans. Although infection with A. phagocytophilum in domestic animals and vector ticks is documented, there is sparse information on the occurrence of A. phagocytophilum in wild...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.11.001
更新日期:2014-04-01 00:00:00
abstract::Anaplasma phagocytophilum is an emerging zoonotic tick-borne pathogen affecting a wide range of mammals. Rodents are suspected to be natural reservoirs for this bacterium, but their role in the epidemiologic cycles affecting domestic animals and wild ungulates has not been demonstrated. This study aimed to improve our...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.05.005
更新日期:2016-07-01 00:00:00
abstract::Ixodes scapularis is responsible for the transmission of a variety of pathogens in North America, including Borrelia burgdorferi sensu stricto, Anaplasma phagocytophilum and Babesia microti. Songbirds have previously been described as agents of tick dispersal, and a combination of empirical data and modeling efforts h...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.05.012
更新日期:2019-08-01 00:00:00
abstract::A cross-sectional study combining different serological and molecular techniques for the detection of Ehrlichia species in dogs and their ticks was carried out with data from all regions of Costa Rica. A seroprevalence of 32.1% (131/408), and infection with E. canis of 3.2% (13/407) was found, whereas 6.9% (9/130) of ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.07.006
更新日期:2016-10-01 00:00:00
abstract::Kemerovo virus (KEMV) is a member of the Great Island virus genetic group, belonging to the tick-borne arboviruses of the genus Orbivirus within the family Reoviridae. Nine strains of KEMV, which were isolated from various locations in Russia, were sequenced by high-throughput sequencing to study their intraspecific d...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101333
更新日期:2020-03-01 00:00:00
abstract::North Asian tick-typhus (NATT), also known as Siberian tick typhus, is the main tick-borne rickettsiosis in Siberia, Russia. Recently, a fatal infection in a four-year-old girl with typical tick-borne rickettsiosis symptoms (fever, rash, eschar at the site of the tick bite, myalgia) and meningeal syndrome was register...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101278
更新日期:2019-10-01 00:00:00
abstract::Ixodes affinis Neumann (1899) and Ixodes scapularis Say (1821) are tick vectors of the etiologic agent of Lyme disease, Borrelia burgdorferi sensu stricto. Ixodes affinis and I. scapularis are morphologically very similar, and as they are sympatric in the mid- and south-Atlantic U.S. coastal states, their accurate ide...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.08.003
更新日期:2014-02-01 00:00:00
abstract::Ticks are important vectors of pathogens affecting humans and animals worldwide. They do not only carry pathogens but diverse commensal and symbiotic microorganisms are also present in ticks. A molecular screening for tick-borne pathogens and endosymbionts was carried out in Ixodes ricinus, Dermacentor reticulatus and...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.05.002
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abstract::Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) ticks cause economic losses for cattle industries throughout tropical and subtropical regions of the world estimated at $US2.5 billion annually. Lack of access to efficacious long-lasting vaccination regimes and increases in tick acaricide resistance have led to th...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2014.03.005
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journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.05.004
更新日期:2016-07-01 00:00:00
abstract::Information on Anaplasma phagocytophilum in Brazil is very restricted. The aim of this study was to report clinical, parasitological, hematological and molecular evidence of a natural A. phagocytophilum infection of an urban Brazilian dog. The dog was an eight-month-old male French bulldog. Veterinary clinical examina...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2015.01.003
更新日期:2015-04-01 00:00:00
abstract::Theileria parva is a tick-transmitted protozoan parasite that causes a disease called East Coast fever (ECF) in cattle. This important tick borne-disease (TBD) causes significant economic losses in cattle in many sub-Saharan countries, including Tanzania. Cattle immunization using Muguga cocktail has been recommended ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.05.007
更新日期:2019-08-01 00:00:00
abstract::This study was aimed to know epidemiological aspects of Borrelia spp. in a protected urban area of Buenos Aires city, Argentina, where thousands of people visit this area for recreational purposes. Ticks were collected from vegetation, birds and dogs. Three hundred and forty birds belonging to 43 species, 41 genera, 1...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101282
更新日期:2019-10-01 00:00:00
abstract::The European polecat, Mustela putorius, occurs almost throughout Europe. However, there is a lack of data on the ectoparasite fauna and the potential role in the circulation of tick-borne pathogens (TBP) of this mustelid species. The aim of this study was to investigate whether M. putorius contributes to the maintenan...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.02.004
更新日期:2019-04-01 00:00:00
abstract::The current study compared the virulence of conidia and blastospores of Metarhizium robertsii (IP 146), M. anisopliae sensu lato (s.l.) (IP 363) and Beauveria bassiana s.l. (IP 361 and CG 307) against unfed larvae and engorged females of Rhipicephalus microplus (Acari: Ixodidae). In addition, the development of fungal...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.06.001
更新日期:2018-07-01 00:00:00
abstract::The seasonal risk to humans of picking up Ixodes ricinus ticks in different habitats at 3 recreational sites in the UK was assessed. A comprehensive range of vegetation types was sampled at 3-weekly intervals for 2 years, using standard blanket-dragging complemented by woollen leggings and square 'heel flags'. Ticks w...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2011.03.002
更新日期:2011-06-01 00:00:00
abstract::Rickettsia amblyommatis is widely distributed in the Americas, and has been reported to infect different species of ticks within its distribution. In Panama, R. amblyommatis is the most common Rickettsia and its presence was molecularly detected in nine species of ticks and one flea species. This work described the is...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101597
更新日期:2021-01-01 00:00:00
abstract::A total of 7364 ticks belonging to 13 species was collected from 64 game animals (belonging to 11 species) and from 64 livestock animals (cattle and sheep) living in close vicinity at 6 localities in 3 South African Provinces (Free State, Mpumalanga, and Limpopo). The geographic distribution of all tick species was co...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.10.003
更新日期:2014-03-01 00:00:00
abstract::We sought to determine the behavioral risk of exposure to tick-borne diseases across a human land-use gradient in a region endemic for diseases transmitted by the lone star tick. We measured the knowledge, attitudes, and preventive behaviors of visitors to 14 suburban, exurban, and rural recreational parks. A structur...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.01.001
更新日期:2013-06-01 00:00:00
abstract::This study is the first report about the prevalence of tick-borne pathogens, as well as their (co-)infection rates, in the museum-archived I. ricinus female ticks collected in Moldova in 1960. A total of 16.7% (21/126) ticks was mono-infected. Borrelia burgdorferi sensu stricto was revealed as the most abundant specie...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2012.12.004
更新日期:2013-06-01 00:00:00