نتایج جستجو برای: ornithodoros tholozani
تعداد نتایج: 442 فیلتر نتایج به سال:
چکیده ندارد.
BACKGROUND A molecular survey was conducted to investigate the presence of pathogenic Borrelia persica species causing the tick borne relapsing fever (TBRF) in Takistan district Qazvin Province, western Iran. METHODS A number of 1021 soft ticks were collected from 31 villages including previously reported infected and none-infected TBRF cases and individually examined for the presence of B. p...
Tick-borne relapsing fever (TBRF) is an arthropod-borne infection found in the Middle East, Africa, Europe and North America. The disease is caused by several species of Borrelia and transmitted by various species of soft ticks [1,2]. Specific relationships usually exist between Borrelia species, the vector ticks and the distribution area [3]. Ornithodoros tholozani is distributed in the Middle...
In this paper, the authors report ticks parasitizing bats from the Serra das Almas Natural Reserve (RPPN) located in the municipality of Crateús, state of Ceará, in the semiarid Caatinga biome of northeastern Brazil. The study was carried out during nine nights in the dry season (July 2012) and 10 nights in the rainy season (February 2013). Only bats of the Phyllostomidae and Mormoopidae famili...
Selected species of mosquitoes and Ornithodoros ticks were evaluated for their potential to transmit Karshi and Langat (tick-borne encephalitis virus complex) viruses in the laboratory. Although there was no evidence of replication of Karshi virus in either of the two mosquito species tested [Ochlerotatus taeniorhynchus (Wiedemann) or Culex pipiens (L.)], Karshi virus replicated in and was tran...
BACKGROUND Relapsing fever is the most frequent bacterial disease in Africa. Four main vector / pathogen complexes are classically recognized, with the louse Pediculus humanus acting as vector for B. recurrentis and the soft ticks Ornithodoros sonrai, O. erraticus and O. moubata acting as vectors for Borrelia crocidurae, B. hispanica and B. duttonii, respectively. Our aim was to investigate the...
Borrelia persica, a bacterium transmitted by the soft tick Ornithodoros tholozani, causes tick-borne relapsing fever in humans in the Middle East, Central Asia and the Indian peninsula. Immunocompetent C3H/HeOuJ mice were infected intradermally with B. persica at varying doses: 1 x 10(6), 1 x 10(4), 1 x 10(2) and 4 x 10(0) spirochetes/mouse. Subsequently, blood samples were collected and screen...
زمینه و هدف :کنه ها مهم پزشکی، ناقل بسیاری از بیماری های ویروسی و باکتریایی هستند و بسیاری ازاین پاتوژن ها در تعامل با ناقلین نیاز به یک دوره رشد و یا تکثیر دارند. از اینرو تعیین سن ناقلین اهمیت زیادی در مکانیزم و اپیدمیولوژی انتقال بیماری دارد. در این راستا یکی از روش های بیوشیمایی در حشرات، استفاده از رنگدانه های آلکولویدی پتردین در جلد حشرات است که در طی زمان غلظت آن در کوتیکول تغییر می کند....
A new species of argasid tick (Acari: Argasidae) is described from immature and adult specimens collected from several localities in Brazil. A complete morphological account is provided for all postembryonic life stages, i.e., larva, nymph, female, and male. Ornithodoros cavernicolous n. sp. is the 113(th) in the genus. Morphologically, the new species shares common features, e.g., presence of ...
The soft tick Ornithodoros guaporensis n. sp. (Acari: Ixodida: Argasidae) is described from larvae and adults. Morphological analysis and 16S rDNA sequences are provided. Adults were collected from a rocky fissure inhabited by bats located in the Amazonian forest in north-eastern Bolivia (Beni Department) close to the Guapord River. Larvae were obtained from eggs laid by females collected in th...
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