• Parasites, Hosts and Diseases
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• 제52권6호
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• pp.685-690
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• 2014

A perianal tick and the surrounding skin were surgically excised from a 73-year-old man residing in a southwestern costal area of the Korean Peninsula. Microscopically a deep penetrating lesion was formed beneath the attachment site. Dense and mixed inflammatory cell infiltrations occurred in the dermis and subcutaneous tissues around the feeding lesion. Amorphous eosinophilic cement was abundant in the center of the lesion. The tick had Y-shaped anal groove, long mouthparts, ornate scutum, comma-shaped spiracular plate, distinct eyes, and fastoons. It was morphologically identified as a fully engorged female Amblyomma testudinarium. This is the third human case of Amblyomma tick infection in Korea.

• 대한수의학회지
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• 제21권2호
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• pp.65-72
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• 1981

인디아, 스리랑카, 버마, 타일랜드, 말레이지아, 인도차이나, 필리핀, 타이완 그리고 일본(日本)에 분포(分布)하는 것으로 이미 알려진 바 있는 Amblyomma testudinarium Kcoh, 1844 진드기가 금번(今番)에 우리 나라에서도 처음으로 발견(發見) 되었기에 보고(報告)한다. 제주시(濟州市)로부터 동남방(東南方) 24km 떨어진 지역(地域)인 북제주군 조천면 교래리에 위치(位置)하고 있는 대원목장(牧場)에서 사육중(飼育中)인 홀스타인 육우(乳牛)로부터 채취(採取)된 미포혈(未飽血) 상태(狀態)의 웅충(雄蟲) 1마리를 검사재료(檢査材料)로하여 종속동정(種屬同定)을 하여 본 결과(結果), Amblyomma testudinarium 진드기로 밝히어 졌으며, 이에 그 형태학적(形態學的) 특징(特徵)을 기술(記述)하여 보고(報告)한다. 경(硬)진드기류(類)에 속(屬)하는 Amblyomma 진드기의 국내서식(國內棲息)이 확인(確認)됨에 따라, 국내(國內)에서 발견(發見) 보고(報告)된 진드기의 종류(種類)는 경(軟)진드기인 Argas속(屬), 그리고 경(硬)진드기인 Boophilus속(屬), Dermacentor속(屬), Haemaphysalis속(屬), Hyalomma속(屬), Ixodes속(屬) 등, 경(軟)진드기류(類) 1속(屬), 경(硬)진드기류(類) 6속(屬), 도합(都合) 7속(屬) 18종(種)이 기록(記錄) 되었으며, 지리적(地理的)으로 볼 때, A. testudinarium 진드기의 분포(分布)에 있어서 우리 나라가 동남아세아(東南亞細亞)와 일본(日本)을 연결(連結)해 주는 교량적(橋梁的) 위치(位置)에 놓여 있다는 점(點)과 제주도(濟州道)의 자연환경(自然環境)과 기후조건(氣候條件)은 열대(熱帶) 또는 아열대(亞熱帶) 지역(地域)의 진드기 서식(棲息)에도 적합(適合) 할 것으로 사료(思料)된다.

• Parasites, Hosts and Diseases
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• 제48권4호
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• pp.313-317
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• 2010

A case of tick bite was found in the inguinal region of a 74-year-old Korean woman. She was attacked by the tick while working in her vegetable garden in the vicinity of mountain located in Suncheon City, the southern coastal area of the Korean Peninsula. On admission she complained of mild discomfort and itching around the bite area. The causative tick was 23 mm long and had slender pedipalps. The scutum was quite ornate and had eyes at the edge. The genital aperture was located anterior to the level of the coxa II. The spiracular plate was comma-shaped and the anus was surrounded posteriorly by the anal groove. The coxa I had subequal 2 spurs; the external one slightly larger. The spur of coxa IV was slightly longer than those of coxae II and III. The tarsus IV had 2 distinct subapical ventral spurs. It was identified as the fully engorged adult female of Amblyomma testudinarium. This is the first human case of Amblyomma bite in Korea.

• Parasites, Hosts and Diseases
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• 제52권5호
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• pp.565-568
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• 2014

Ticks and tick-borne diseases are important in human and livestock health worldwide. In November 2012, ixodid ticks were collected and identified morphologically from cattle and wild animals in the Maswa district and Iringa urban, Tanzania. Amblyomma gemma, A. lepidum, and A. variegatum were identified from Maswa cattle, and A. variegatum was the predominant species. A. marmoreum, Hyalomma impeltatum, and Rhipicephalus pulchellus were identified from Iringa cattle in addition to the above 3 Amblyomma species, and A. gemma was the most abundant species. Total 4 Amblyomma and 6 Rhipicephalus species were identified from wild animals of the 2 areas. A. lepidum was predominant in Maswa buffaloes, whereas A. gemma was predominant in Iringa buffaloes. Overall, A. variegatum in cattle was predominant in the Maswa district and A. gemma was predominant in Iringa, Tanzania.

• Asian-Australasian Journal of Animal Sciences
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• 제9권5호
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• pp.567-569
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• 1996

The studies on the prevalence of ixodid ticks during July 1991 to June 1992 in five thanas of Chittagong hilly area in Bangladesh revealed that 65.45% cattle and 44.4% goats were infested with Boophilus microplus, Rhipicephalus appendiculatus and Haemaphysallis bispinosa. Aside these, only 4.62% cattle were found infested with Amblyomma sp. The tick infestation was highest in summer and declined gradually through rainy season to lowest in winter.

• 대한수의학회지
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• 제24권2호
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• pp.201-211
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• 1984

개진드기 (Rhipicephalus sanguineus, Latreille 1806)는 세계적(世界的)으로 가장 넓은 분포(分布)를 보이는 종류(種類)로서 알려지고 있으나 지금까지 국내(國內)에서는 고 조사(調査)가 실시(實施)된 바 없다. 1981년(年) 부터 1984년年에 걸쳐 우리나라 가축(家畜) 진드기의 생능조사(生能調査) 및 방제대책(防除對策)에 연관(關聯)된 몇가지 시험(試驗) 연구사업(硏究事業)을 수행(遂行)하는 동안 경기(京畿), 충남(忠南), 전북(全北) 및 제주지역(濟州地域)의 목장(牧場)에서 사육(飼育)하고 있는 개와 부근의 초지(草地)로부터 미포혈(未飽血) 또는 부분(部分) 포혈(飽血)된 진드기 재료(材料)를 수집(採集)하여 조사(調査), 분류(分類), 정의(同定) 해 본 결과(結果), P. sanguineus로 확인(確認) 되었다. R. sanguineus의 국내(國內) 조사(調査)와 그 기록(記錄)과 더불어 수컷재료(材料)에 대(對)한 주사전자현미경(走査電子顯微鏡) (SEM) 영상촬영(映像撮影) 사진(寫眞)과 함께 형태학적특징(形態學的特徵)을 관찰(觀察)하여 보고(報告)한다. R. sanguineus의 국내(國內) 서식(棲息)이 확정(確定)됨에따라 총(總)8속(屬)(Argas, Amblyomma, Boophilus, Dermacentor, Haemaphysalis, Hyalomma, Ixodes, Rhipicephalus)의 진드기가 분포(分布)함이 밝혀졌다.

• Parasites, Hosts and Diseases
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• 제62권1호
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• pp.117-130
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• 2024

Ticks host different pathogens as endosymbiont and nonpathogenic microorganisms and play an important role in reproductive fitness and nutrient provision. However, the bacterial microbiomes of white-tailed deer ticks have received minimal attention. This study aimed to examine the bacterial microbiome of ticks collected from Odocoileus virginianus on the Mexico-United States border to assess differences in microbiome diversity in ticks of different species, sexes, and localities. Five different tick species were collected: Rhipicephalus microplus, Dermacentor nitens, Otobius megnini, Amblyomma cajennense, and A. maculatum. The tick microbiomes were analyzed using next-generation sequencing. Among all tick species, the most predominant phylum was Proteobacteria, followed by Actinobacteria and Firmicutes. The ticks from Tamaulipas and Nuevo León presented the highest bacterial species diversity. Acinetobacter johnsonii and A. lwoffii were the common bacterial species in the microbiome of all ticks, Coxiella were present in R. microplus, and Dermacentor nitens also exhibited a Francisella-like endosymbiont. The microbiome of most females in D. nitens was less diverse than that of males, whereas R. microplus occurs in females, suggesting that microbiome diversity is influenced by sex. In the bacterial communities of A. maculatum and O. megnini, Candidatus Midichloria massiliensis, and Candidatus Endoecteinascidia fumentensis were the most predominant endosymbionts. These results constitute the initial report on these bacteria, and this is also the first study to characterize the microbiome of O. megnini.

• Parasites, Hosts and Diseases
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• 제55권2호
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• pp.185-191
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• 2017

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. A total of 9,846 hard ticks were collected, including 4,977 Haemaphysalis longicornis, 4,313 Haemaphysalis flava, 508 Ixodes nipponensis, 1 Ixodes turdus, and 47 Amblyomma testudinarium. A total of 240 hard ticks were collected from 49 wild boars, including 109 H. flava, 84 H. longicornis, and 47 A. testudinarium. A total of 578 hard ticks were collected from areas around domestic pig farms. Only 2 hard tick species, 546 H. longicornis and 32 H. flava, were collected from these areas. A total of 9,028 hard ticks were collected from wild boars of 8 habitats, including 4,347 H. longicornis, 4,172 H. flava, 508 I. nipponensis, and 1 I. turdus. A. testudinarium was collected only from wild boars, and I. nipponensis and I. turdus were collected only from the habitats of wild boars.

• Parasites, Hosts and Diseases
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• 제56권3호
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• pp.305-308
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• 2018

This study was aimed to disclose the prevalence rate of tick-borne pathogens from ticks collected from cattle and wild animals in Tanzania in 2012. Ticks were collected from slaughtered cattle and dead wild animals from November 5 to December 23, 2012 and identified. PCR for detecting Anaplasmataceae, Piroplamidae, Rickettsiaceae, Borrelia spp., and Coxiella spp. were done. Among those tested, Rickettsiaceae, Piroplasmidae, and Anaplasmataceae, were detected in ticks from the 2 regions. Rickettsiaceae represented the major tick-borne pathogens of the 2 regions. Ticks from animals in Maswa were associated with a higher pathogen detection rate compared to that in ticks from Iringa. In addition, a higher pathogen detection rate was observed in ticks infesting cattle than in ticks infesting wild animals. All examined ticks of the genus Amblyomma were infected with diverse pathogens. Ticks of the genera Rhipicephalus and Hyalomma were infected with 1 or 2 pathogens. Collectively, this study provides important information regarding differences in pathogen status among various regions, hosts, and tick species in Tanzania. Results in this study will affect the programs to prevent tick-borne diseases (TBD) of humans and livestock in Tanzania.

• 한국동물위생학회지
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• 제39권2호
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• pp.75-80
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• 2016

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease characterized by fever and thrombocytopenia. Haemaphysalis longicornis ticks comprise the major population of ticks in the environment and have been considered as the main vector for SFTS virus (SFTSV). Here we investigated the distribution of ticks carrying SFTSV collected from the environment using the dragging or sweeping methods during April~October 2015 in Jeollanam-do, Korea. Sampling was taken from Songjeong, Omi, Bangkwang, Sandong areas in Jiri walking trails. Among the total 3,869 ticks collected, 3,823 ticks (98.8%) were H. longicornis, 41 (1.1%) were Amblyomma testudinarium, and 5 (0.1%) were Ixodes nipponensis. Classification results by regional groups of H. longicornis indicated that 1,613 ticks were collected in Sandong, 1,190 ticks in Omi, 603 ticks in Bangkwang, and 417 ticks in Songjeong. In monthly distributional studies of H. longicornis based on the developmental stages, nymph (325 ticks) was collected from May to October, 94% of larvae from April to June, and 94% of adult from June to August. These results showed the different dominant stage of ticks according to seasons. However, no SFTSV-specific gene was detected in 3,823 ticks of H. longicornis, 41 of A. testudinarium and 5 of I. nipponensis.