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Haemaphysalis flava

Yali Sun, Lan He, Long Yu, Jiaying Guo, Zheng Nie, Qin Liu, Junlong Zhao
Ixodid ticks are ectoparasites responsible for the transmission of a large number of bacterial, viral, and protozoan pathogens to animals and humans. As long-term blood-pool feeders, the digestion of host blood is critical to their development as well as to the establishment of the sexual cycle of hemoparasites such as Babesia parasites, the agents of human and animal babesiosis. Previous studies have demonstrated that cysteine proteases are involved in blood digestion, embryogenesis, and pathogen transmission in other species of ticks, but their characteristics and functions are still unidentified in Haemaphysalis flava...
March 2, 2019: Parasitology Research
Wei Qing Zheng, Xue Nan Xuan, Ren Long Fu, Hui Ying Tao, Yang Qing Liu, Xiao Qing Liu, Dong Mei Li, Hong Mei Ma, Hai Ying Chen
Ticks are the vectors of various pathogens, threatening human health and animal production across the globe. Here, for the first time we detected Ricketssia spp., Borrelia spp. and protozoan in ticks from Poyang Lake region in Ji- angxi Province of eastern China. In 3 habitat categories and on 12 host species, 311 ticks from 11 species were collected. Haemaphysalis longicornis was the predominant species, accounting for 55.63%, followed by Rhipicephalus microplus, Haemaphysalis flava and Ixodes granulatus. Of the collected ticks, 7...
December 2018: Korean Journal of Parasitology
Weiqing Zheng, Xuenan Xuan, Renlong Fu, Huiying Tao, Rongman Xu, Yangqing Liu, Xiaoqing Liu, Jiafu Jiang, Haixia Wu, Hongmei Ma, Yi Sun, Haiying Chen
In recent years, a large effort has been made for tick surveys for public health importance around China, especially after outbreaks of severe fever with thrombocytopenia syndrome (SFTS) occurred in humans in 2009. In this paper, the preliminary species composition and population distribution of ticks in Jiangxi Province of Eastern China is reported. Ticks were collected in three habitats (grassland, shrubs and woodland) and from nine host groups in 12 sampling sites throughout Jiangxi Province between 2011 and 2018...
December 12, 2018: Experimental & Applied Acarology
Young-Sun Jo, Jun-Gu Kang, Jeong-Byoung Chae, Yoon-Kyoung Cho, Jeong-Hwa Shin, Weon-Hwa Jheong, Joon-Seok Chae
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging viral disease in East Asian countries, including China, Japan, and the Republic of Korea (ROK). The causative agent of SFTS is the SFTS virus (SFTSV), which is transmitted by ticks. To investigate the prevalence of SFTSV in the ROK, a total of 9744 ticks were collected from vegetation in five national parks between July and November 2015. Of the collected adult and nymph ticks, Haemaphysalis longicornis (68.44%) was the most abundant, followed by Haemaphysalis flava (29...
November 27, 2018: Vector Borne and Zoonotic Diseases
Lv Xu, Lei Liu And, Tian-Yin Cheng
Haemaphysalis flava (Acari: Ixodidae) harbors pathogenic microorganisms and transfers these to hosts during blood feeding. Proteomic analysis in the midgut contents of H. flava detected glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and contig 1683 was retrieved as a GAPDH gene fragment by searching our previous transcriptomic library. In the study, the 5' and 3' ends of contig 1683 were cloned by rapid amplification of cDNA ends (RACE) and a full length, 1340 bp cDNA of Hf-GAPDH was obtained. The open-reading frame had 999 bp and coded for 333 amino acids...
November 9, 2018: Journal of Medical Entomology
Xiao-Ming He, Lei Liu, Tian-Yin Cheng
Ticks and tick-borne diseases are major global health threats. During blood feeding, ticks insert their hypostomes into hosts and inject an array of anticoagulant molecules to maintain fluidity of the blood-meal. These anticoagulant molecules may provide insights into understanding the feeding biology of ticks and to develop vaccines against infestations. In Haemaphysalis flava, the heat shock cognate 70 (HSC70), a member of the heat shock protein (HSP) family, is differentially expressed in salivary glands at different levels of engorgement during blood feeding...
January 2019: Ticks and Tick-borne Diseases
Kandai Doi, Takuya Kato, Shin-Ichi Hayama
Since the raccoon ( Procyon lotor ) was introduced to Japan, studies have established that they are infested with native Japanese tick species. However, the quantity of ticks infesting raccoons is unknown. We conducted a survey of ticks on invasive raccoons captured on the Miura Peninsula, Kanagawa Prefecture, Japan, from April 2015 through June 2016 to determine the species of ticks and to quantify the intensity of tick infestation in order to obtain basal information related to the ecology of host-parasite relationships among indigenous tick species and an alien mammalian species...
December 2018: International Journal for Parasitology. Parasites and Wildlife
Xing Zhang, Jingjing Geng, Jie Du, Yanhong Wang, Weiping Qian, Aihua Zheng, Zhen Zou
Rickettsia species are obligate intracellular Gram-negative bacteria that can infect a wide range of vertebrate hosts, including humans, through arthropod vectors such as Ixodid ticks. These ticks are a threat to humans and animals because they are the primary vectors or reservoirs for rickettsiae, which is of public health importance. In this study, we report the identification and percent of positive of Rickettsia spp. in ticks collected from Cangxi County, Southwest China. Haemaphysalis longicornis comprised 48...
August 21, 2018: Vector Borne and Zoonotic Diseases
Lei Liu, Yi-Song Liu, Guo-Hua Liu, Tian-Yin Cheng
BACKGROUND: Ticks and tick-borne diseases are of major public health concern. Currently, development of vaccines against ticks is considered crucial for their control. A critical step in this process is the screening of viable antigens. Faeces are byproducts of digestion and blood meal utilization, and partly reflect the vitality and vector potential of ticks. However, an integrated analysis of proteins in tick faeces is lacking. The present study explored the protein components in the faeces of the tick Haemaphysalis flava, by liquid chromatography-tandem mass spectrometry (LC/MS-MS) to identify potential protein antigens for vaccine development against ticks...
February 8, 2018: Parasites & Vectors
Lei Liu, Tian-Yin Cheng, Xiao-Ming He
Scant information is available regarding the proteins involved in blood meal processing in ticks. Here, we aimed to highlight the midgut proteins involved in preventing blood meal coagulation, and in facilitating intracellular digestion in the tick Haemaphysalis flava. Proteins were extracted from the midgut contents of fully engorged and partially engorged ticks. We used liquid chromatography tandem-mass spectrometry (LC-MS/MS) analysis to identify 131 unique peptides, and 102 proteins. Of these, 15 proteins, each with at least two unique peptides, were recognized with high confidence...
March 2018: Ticks and Tick-borne Diseases
Hiroko Ejiri, Chang-Kweng Lim, Haruhiko Isawa, Yukie Yamaguchi, Ryosuke Fujita, Mutsuyo Takayama-Ito, Ryusei Kuwata, Daisuke Kobayashi, Madoka Horiya, Guillermo Posadas-Herrera, Itoe Iizuka-Shiota, Satsuki Kakiuchi, Yukie Katayama, Toshihiko Hayashi, Toshinori Sasaki, Mutsuo Kobayashi, Shigeru Morikawa, Ken Maeda, Tetsuya Mizutani, Koki Kaku, Masayuki Saijo, Kyoko Sawabe
In Japan, indigenous tick-borne phleboviruses (TBPVs) and their associated diseases first became evident in 2013 by reported human cases of severe fever with thrombocytopenia syndrome (SFTS). In this study, we report a novel member of the genus Phlebovirus designated as Kabuto Mountain virus (KAMV), which was isolated from the ixodid tick Haemaphysalis flava in Hyogo, Japan. A complete viral genome sequencing and phylogenetic analyses showed that KAMV is a novel member of TBPVs, which is closely related to the Uukuniemi and Kaisodi group viruses...
January 15, 2018: Virus Research
Ratree Takhampunya, Heung-Chul Kim, Sung-Tae Chong, Achareeya Korkusol, Bousaraporn Tippayachai, Silas A Davidson, Jeannine M Petersen, Terry A Klein
A total of 6,255 ticks belonging to three genera and six species (Haemaphysalis flava Neumann, Haemaphysalis longicornis Neumann, Haemaphysalis phasiana Saito, Ixodes nipponensis Kitaoka & Saito, Ixodes persulcatus Schulze, and Amblyomma testudinarium Koch) collected from May-August, 2013, at four southwestern provinces in the Republic of Korea (ROK) were submitted to the Armed Forces Research Institute of Medical Sciences and assayed for selected tick-borne pathogens. One pool each of H. flava and H. phasiana was positive by PCR and sequencing for a Francisella-like endosymbiont, while all pools were negative for Francisella tularensis, the causative agent of tularemia...
November 7, 2017: Journal of Medical Entomology
Ryosuke Fujita, Hiroko Ejiri, Chang-Kweng Lim, Shinichi Noda, Takeo Yamauchi, Mamoru Watanabe, Daisuke Kobayashi, Mutsuyo Takayama-Ito, Katsunori Murota, Guillermo Posadas-Herrera, Shohei Minami, Ryusei Kuwata, Yukie Yamaguchi, Madoka Horiya, Yukie Katayama, Hiroshi Shimoda, Masayuki Saijo, Ken Maeda, Tetsuya Mizutani, Haruhiko Isawa, Kyoko Sawabe
During the course of tick-borne virus surveillance in Japan, three independent isolates of probably the same virus were obtained from three geographically distant populations of the hard tick Haemaphysalis flava. Genome analyses of the three isolates demonstrated that they were closely related but distinct strains of a novel virus, designated Tarumizu tick virus (TarTV), which has a genome of 12 double-stranded RNA segments. The development of the virus-induced cytopathic effects on BHK cells significantly varied according to virus strains...
October 15, 2017: Virus Research
Jeong-Byoung Chae, Jun-Gu Kang, Heung-Chul Kim, Sung-Tae Chong, In-Yong Lee, Nam-Shik Shin, Joon-Seok Chae
Tick is one of the most important arthropods in the transmission of vector-borne diseases. In this study, we investigated the abundance and species of ticks associated with swine and their habitats to assess the risk of spread of tick-borne diseases in host species, such as wild boars. Ticks were collected from 24 grazing or traditionally reared domestic pig farms and 8 habitats of wild boars in 8 provinces and 1 city in the Republic of Korea, by using the dragging and flagging methods. Ticks were also collected directly from 49 wild boars by using fine forceps...
April 2017: Korean Journal of Parasitology
Lei Liu, Tian-Yin Cheng, Ya Yang
Ticks and tick-borne-diseases have serious public health implications, and screening feasible protein candidates for vaccines development is identified to be an effective alternative to control of tick infestations. In current study, we focused on cloning the full-length gene encoding a heat shock cognate protein 70 (Hsc70), a molecular chaperone of critical functional roles belonging to heat shock protein 70 (HSP70) family, in salivary glands of Haemaphysalis flava, namely Hf-Hsc70, and analyzing the expression of Hf-Hsc70 in different life phases, organs and ambient temperatures...
June 2017: Parasitology Research
Tian-Yin Cheng, Guo-Hua Liu
Ticks are blood-sucking ectoparasites of great medical and veterinary significance that can transmit bacteria, protozoa, fungi and viruses, causing a variety of human and animal diseases worldwide. In the present study, the intestinal bacterial flora associated with Haemaphysalis flava ticks in different developmental stages were analyzed using polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE). Eleven distinct DGGE bands were found using PCR-DGGE method. Sequences analyses indicated that they belonged to Bacillus cereus, Candidatus rickettsia, Erwinia sp...
June 1, 2017: Acta Parasitologica
Miao Lu, Jun-Hua Tian, Bin Yu, Wen-Ping Guo, Edward C Holmes, Yong-Zhen Zhang
Rickettsiales bacteria are important agents of (re)emerging infectious diseases, with ticks playing a key role in their evolution and transmission. We collected 1079 hard ticks belonging to five species (Ixodes sinensis, Rhipicephalus microplus, Haemaphysalis flava, Haemaphysalis hystricis and Haemaphysalis longicornis) from cattle and goats in Wuhan city, Hubei province, China. The dominant tick species was H. longicornis (578, 53.57%), followed by R. microplus (354, 32.81%), H. hystricis (62, 5.75%), H. flava (57, 5...
June 2017: Ticks and Tick-borne Diseases
Kiwa Furuno, Kyunglee Lee, Yukie Itoh, Kazuo Suzuki, Kenzo Yonemitsu, Ryusei Kuwata, Hiroshi Shimoda, Masahisa Watarai, Ken Maeda, Ai Takano
The genus Borrelia comprises arthropod-borne bacteria, which are infectious agents in vertebrates. They are mainly transmitted by ixodid or argasid ticks. In Hokkaido, Japan, Borrelia spp. were found in deer and Haemaphysalis ticks between 2011 and 2013; however, the study was limited to a particular area. Therefore, in the present study, we conducted large-scale surveillance of ticks and wild animals in the western part of the main island of Japan. We collected 6,407 host-seeking ticks from two regions and 1,598 larvae obtained from 32 engorged female ticks and examined them to elucidate transovarial transmission...
2017: PloS One
Zhong-Bo Li, Tian-Yin Cheng, Xing-Li Xu, Lu-Lin Song, Guo-Hua Liu
The tick Haemaphysalis flava (Acari: Ixodidae) is an important ectoparasite, which causes direct damage to their hosts and also acts as a vector of various infectious disease agents in China. Despite its significance, the epidemiology, genetics and biology of H. flava has not been studied in detail. In the present study, the genetic variation in three mitochondrial (mt) DNA regions, namely cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 1 and 4 (nad1 and nad4), was examined in H. flava ticks collected from wild hedgehogs in China...
February 2017: Experimental & Applied Acarology
Yoontae Noh, Yeong Seon Lee, Heung-Chul Kim, Sung-Tae Chong, Terry A Klein, Ju Jiang, Allen L Richards, Hae Kyeong Lee, Su Yeon Kim
BACKGROUND: Rickettsiae constitute a group of arthropod-borne, Gram-negative, obligate intracellular bacteria that are the causative agents of diseases ranging from mild to life threatening that impact on medical and veterinary health worldwide. METHODS: A total of 6,484 ticks were collected by tick drag from June-October 2013 in the southwestern provinces of the Republic of Korea (ROK) (Jeollanam, n = 3,995; Jeollabuk, n = 680; Chungcheongnam, n = 1,478; and Chungcheongbuk, n = 331)...
January 10, 2017: Parasites & Vectors
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