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Science abhors a surveillance vacuum: Detection of ticks and tick-borne pathogens in southern New Mexico through passive surveillance.

Robust tick surveillance enhances diagnosis and prevention of tick-borne pathogens, yet surveillance efforts in the United States are highly … m dogs, mule deer, and Rocky Mountain elk, Otobius megnini from dogs, cats, horses, and Coues deer, Dermacentor parumapertus from dogs and black-tailed jackrabbits, Dermacentor albipictus from domesticated cats, mule deer and Rocky Mountain elk, and Dermacentor spp. from American black bear, Rocky Mountain elk, and mule deer. One pool of D. parumapterus from …

Абиотические и абитуриентские факторы изобилия, разнообразия, фенологии и риска контакта с людьми в южной части Калифорнии.

Распределение, изобилие и сезонная активность переносчиков, таких, как клещи и комары, являются ключевыми определяющими факторами риска трансмиссийных заболеваний и в значительной степени зависят от абиотических условий и среды обитания. Несмотря на многочисленные виды векторов тика на густонаселённом североамериканском западном побережье, все, за исключением Иксодеса Пасификуса, главного вектора спирошета Лайма, плохо характеризуются с точки зрения сезонной активности и мелких факторов распределения и изобилия, особенно в густонаселенных районах южной части Калифорнии. Такое отсутствие знаний

Совпадение в аннотации оригинала
The distribution, abundance and seasonal activity of vector species, such as ticks and mosquitoes, are key determinants of vector-borne dise … pacificus is strongly associated with dense forest habitats and cool and moist microclimates, while Dermacentor occidentalis and Dermacentor variabilis, competent vectors of Rocky Mountain Spotted Fever, were found to be more tolerant of higher average temperatures and more open habitats. These results suggest that I. pacificus may be expected to experience r …

Tick Infestation Among Stray Dogs of Urban Chișinău, Moldova: Species Distribution and Pathogen Detection.

We investigated tick infestations in stray dogs from Chișinău, the capital of the Republic of Moldova, focusing on tick species distribution, and pathogen infection rates. Ticks were collected from 232 stray dogs across six major urban parks in 2021-2022. A total of 443 ticks were collected, belonging to five species: Ixodes ricinus (43.8%), Dermacentor reticulatus (35.2%), Dermacentor marginatus (20.5%), Rhipicephalus sanguineus s.l. and Haemaphysalis punctata with only 1 specimen. Notably, 92.5% of ticks were adults, while only 7% were nymphs and <1% were larvae. On average, 44.4% of stray d…

Geographical and Tick-Dependent Distribution of Flavi-Like Alongshan and Yanggou Tick Viruses in Russia.

The genus Flavivirus includes related, unclassified segmented flavi-like viruses, two segments of which have homology with flavivirus RNA-dependent RNA polymerase NS5 and RNA helicase-protease NS3. This group includes such viruses as Jingmen tick virus, Alongshan virus, Yanggou tick virus and others. We detected the Yanggou tick virus in Dermacentor nuttalli and Dermacentor marginatus ticks in two neighbouring regions of Russia. The virus prevalence ranged from 0.5% to 8.0%. We detected RNA of the Alongshan virus in 44 individuals or pools of various tick species in eight regions of Russia. Th…

Molecular evidence of the spotted fever group Rickettsiae in ticks from Yunnan Province, Southwest China.

Ixodid ticks transmit many obligate intracellular Rickettsial species. Several previous studies have identified Rickettsia species in the northeastern and southern part of China, but few reports on the prevalence of infection of spotted fever group Rickettsiae (SFGR) in ticks in southwest China are available. Here, we investigated SFGR in 394 adult ticks of five species including Dermacentor nuttalli, Dermacentor silvarum, Haemaphysalis longicornis, Ixodes sinensis and Ixodes persulcatus, collected in the border region between China and Burma in Yunnan Province. PCR was used to detect the pres…

Prevalence and molecular characterization of Rickettsia spp. in questing ticks from north-western Spain.

Tick-borne rickettsioses, most of them belonging to the spotted fever group (SFG), have been recognized as important emerging vector-borne zoonotic diseases. In order to determine the presence of Rickettsia spp. in questing ticks from north-western Spain, 1056 Ixodes ricinus, 19 Dermacentor marginatus, 17 Dermacentor reticulatus and one Ixodes acuminatus were processed. Rickettsia DNA was detected by PCR targeting rOmpA and rOmpB genes. A total of 219 (20.7%) I. ricinus, 19 (100%) D. marginatus and four D. reticulatus (23.5%) were positive. The prevalence was significantly higher in I. ricinus…

Virome analysis of tick-borne viruses in Heilongjiang Province, China.

Ticks are implicated in the transmission of various human and livestock pathogens worldwide. This study aimed to understand the geographical distribution of tick species, along with tick-associated viruses, in Heilongjiang Province, northeast China. Molecular methods were used to classify tick species, with next-generation sequencing and polymerase chain reaction-based analyses used to assess the viromes of ticks from four representative sampling locations in the Greater Khingan Mountains. Five species of ixodid ticks were identified, including Ixodes persulcatus, Dermacentor nuttalli, Dermace…

[A descriptive epidemiological study on canine babesiosis in the Lake Geneva region].

A descriptive study was carried out in the district of the Lake Geneva between March 1, 2005 and August 31,2006 to assess the incidence and … 2005 and 2006 (11 cases) and two cases in autumn 2005, coinciding with the main activity period of Dermacentor reticulatus, the main vector of B. canis canis. A total of 495 ticks were collected on patients by the veterinarians, 473 were identified as Ixodes sp., 7 as Rhipicephalus sanguineus and 15 as Dermacentor reticulatus. While Ixodes sp. was found in t …

The Historical Baseline of Hard Tick Records in Spain (1985-2024).

Ticks are important vectors of pathogens, producing diseases in animals and humans. The planning of information campaigns or prevention programs is heavily based on the knowledge of highly detailed data on tick distribution. This study reports unpublished data on the distribution of more than 30,000 tick specimens, collected by active surveys in the years 1985-2024 in Spain, from 2285 surveys in 1636 unique sites, providing coordinates with variable accuracy. The report covers new records of Dermacentor marginatus, Dermacentor reticulatus, Haemaphysalis punctata, Haemaphysalis sulcata, Hyalomm…

Parasites of the black-tailed jackrabbit in north central Colorado.

Forty-four black-tailed jackrabbits, Lepus californicus melanotis Mearns, 1890, were collected near Denver from August, 1972, through July, 1973, and amined for parasites. Recovered parasites and their infection rates were: Eimeria sp. 100%, Cittotaenia sp.27%, coenuri of Multiceps sp. 57%, Cediopsylla inaequalis 14%, Hoplopsyllus affinis 9%, Haemodipsus setoni 2%, Dermacentor andersoni 14%, and Haemaphysalis leporis-palustris 25%.

First European Identification of a Partial Tacheng Tick Virus 8-like Underscores the Hidden Burden of Tick-Borne Flavivirus-like Viruses.

Tick-associated viruses are an underexplored component of global viromes, and highly divergent RNA viruses often remain undetected due to low abundance and sequence divergence. Tacheng tick virus 8 (TcTV8) is a poorly characterized RNA flavivirus-like virus originally reported from Dermacentor-associated ticks in China, with few subsequent reports and no confirmed detections outside Asia. Here, we report the detection and partial genomic characterization of a TcTV8-like virus in ticks collected from Portugal. Sequence-independent (SISPA) nanopore sequencing of individual ticks recovered three …

Species diversity of ticks infesting dogs in the north-eastern part of Lublin Province (eastern Poland).

Ixodes ricinus followed by Dermacentor reticulatus are the most common tick species with medical and veterinary importance in Poland. Ixodes ricinus is widely distributed across Poland, whereas the range of D. reticulatus is limited to the eastern and central parts of the country, with several new foci in the mid-west and west. Concurrently, an increase in the occurrence range of D. reticulatus has been observed. Recent studies indicate its high density in eastern Poland. The aim of the study was to determine the species composition of ticks infesting dogs from the northeastern part of Lublin …

Stable prevalence of Powassan virus in Ixodes scapularis in a northern Wisconsin focus.

Deer tick virus (DTV), a variant of Powassan virus (POWV), appears to be maintained in nature in an enzootic cycle between Ixodes scapularis ticks and small mammals. Although POWV infection of human beings is rare, a recent report suggests increasing incidence and the possibility that POWV may be an emerging tick-borne zoonosis. Therefore, we assessed the long-term stability of the POWV transmission cycle in northwestern Wisconsin. Adult I. scapularis and Dermacentor variabilis were collected from Hayward and Spooner, Wisconsin, screened for infection by reverse transcriptase polymerase chain …

Prevalence and Identification of Borrelia burgdorferi Sensu Lato Genospecies in Ticks from Northeastern China.

Lyme disease is considered as one of important tick-transmitted zoonosis in northeastern China, where the causative agents, the Borrelia bur … persulcatus (59.9%), followed by Haemaphysalis concinna (14.8%), Haemaphysalis longicornis (8.9%), Dermacentor nuttalli (9.4%), and Dermacentor silvarum (7.0%). Only I. persulcatus was tested positive for Borrelia spirochetes DNA by PCR, targeting the 5S-23S rRNA intergenic spacer and 16S rRNA genes, with a prevalence of 1.9%. Phylogenetic analysis based on …

Identification of the causative agent of canine babesiosis in the North of Kazakhstan.

BACKGROUND: Canine babesiosis is a common disease in the northern part of the Republic of Kazakhstan, in particular in the Kostanay region. … earch work, the presence in the city and some areas of the Kostanay region of two species of ixodid Dermacentor reticulatus and Dermacentor marginatus, was established. Of these, one species was identified in dogs, which serves as a carrier of canine babesiosis-D. reticulatus. In all 31 DNA samples from the blood of dogs diagnosed with babesiosis, a fragment …

Colorado tick fever virus: a review of historical literature and research emphasis for a modern era.

Colorado tick fever virus is an understudied tick-borne virus of medical importance that is primarily transmitted in the western United States and southwestern Canada. The virus is the type species of the genus Coltivirus (Spinareoviridae) and consists of 12 segments that remain largely uncharacterized. Patterns of viral distribution are driven by the presence of the primary vector, the Rocky Mountain wood tick, Dermacentor andersoni. Infection prevalence in D. andersoni can range from 3% to 58% across the geographic distribution of the tick. Infection in humans can be severe and often present…

Distribution and Characterisation of Tick-Borne Flavi-, Flavi-like, and Phenuiviruses in the Chelyabinsk Region of Russia.

In this work, we presented data from a two-year study of flavi-, flavi-like, and phenuiviruses circulation in the population of ixodid ticks in the Chelyabinsk region. We isolated three tick-borne encephalitis virus (TBEV) strains from I. persulcatus, which was not detected in the ticks of the genus Dermacentor. The virus prevalence ranged from 0.66% to 2.28%. The Yanggou tick virus (YGTV) is widespread in steppe and forest-steppe zones and is mainly associated with ticks of the genus Dermacentor. We isolated 26 strains from D. reticulatus, D. marginatus, and I. persulcatus ticks in the HAE/CT…

Hard ticks and tick-borne pathogens in Mongolia-A review.

Ticks and tick-borne pathogens (TBPs) pose a considerable threat to human and animal health in Mongolia; a large and sparsely inhabited coun … this zoonotic problem in Mongolia, focusing on tick species from the genera Ixodes, Haemaphysalis, Dermacentor, Hyalomma, and Rhipicephalus, which are associated with particular vegetation zones of the country. The most important tick species of medical and veterinary concern are Ixodes persulcatus and Dermacentor nuttalli, which are found in northern boreal …

Manual for maintenance of multi-host ixodid ticks in the laboratory.

Use of laboratory animals as hosts for blood-sucking arthropods remains a time-proven and the most efficient method for establishment and pr … ce in maintaining laboratory colonies of Ixodes scapularis, Ixodes pacificus, Amblyomma americanum, Dermacentor variabilis, Dermacentor occidentalis, Haemaphysalis leporispalustris, and Rhipicephalus sanguineus with descriptions of the complete laboratory life cycles and reliable production of uninfected ticks under standardized conditions has been published …

Evaluation of the presence of Rickettsia slovaca infection in domestic ruminants in Catalonia, Northeastern Spain.

Rickettsia slovaca is the etiological agent of the human disease tick-borne lymphadenopathy (TIBOLA) transmitted by Dermacentor spp. ticks. In our area, Dermacentor marginatus is the most important tick vector; adult ticks feed on mammals, especially ungulates such as wild boars and domestic ruminants. The epidemiology of tick-transmitted diseases describes a wild cycle and a domestic cycle and both are connected by ticks. To identify the role of domestic ruminants in the transmission and maintenance of R. slovaca infection, blood samples from sheep (n=95), goats (n=91), and bullfighting cattl…