1/10. Amblyomma testudinarium tick bite: one case of engorged adult and a case of extraordinary number of larval tick infestation.This paper reports two recent cases of tick bite due to Amblyomma testudinarium. The first case was an 86-year-old farmer infested with a fully engorged adult tick attached on his inguinal region. The second case was a 57-year-old male infested with an extraordinarily large number of larval ticks (> 100 larvae). The ticks were identified as A. testudinarium based on morphological characteristics. To our knowledge, the latter case is the eleventh case of larval tick bites among all tick species and the fourth case with larval A. testudinarium in japan.- - - - - - - - - - ranking = 1keywords = bite (Clic here for more details about this article) |
2/10. Introduction of the exotic tick Amblyomma hebraeum into florida on a human host.A resident of florida returned from a short visit to southern africa to find a male Amblyomma hebraeum tick attached to the skin behind her knee. Amblyomma hebraeum is a major vector of 2 pathogens that cause important diseases in southern africa, heartwater of ruminants and African tick-bite fever of humans. The tick was tested by polymerase chain reaction assay for evidence of infection with Cowdria ruminantium and rickettsia africae (the causative agents of heart-water and African tick-bite fever, respectively) and was found to be negative for both agents. This is the second record of the exotic tick, A. hebraeum, being introduced into the united states on a human host.- - - - - - - - - - ranking = 0.33333333333333keywords = bite (Clic here for more details about this article) |
3/10. Two human cases of tick bite caused by ixodes nipponensis.We report two human cases of tick bite. A 63-year-old male had a pruritic pea-sized brownish nodule on the left popliteal area. Another 41-year-old male had an asymptomatic bean-sized black nodule in the pubic area. The ticks were identified as ixodes nipponensis, which are the 18th and the 19th cases in korea.- - - - - - - - - - ranking = 0.83333333333333keywords = bite (Clic here for more details about this article) |
4/10. Anaphylactic shock to argas reflexus bite.anaphylaxis is a severe, life-threatening allergic reaction, affecting both children and adults. The occurrence of anaphylaxis is not as rare as generally believed (1.21% to 15.04% of the US population). Often the cause of this reaction remain unknown, mainly due to the difficulty in defining the outbreaking causes. Herein, we describe an interesting case of a patient, who developed an anaphylactic reaction after the bite of a pigeon tick. During the last 2 years, in wintertime, the patient often came to the emergency room for general rash and swelling, hypotension and tachycardia preceded by itching and general distress. Notably, the symptoms manifested themselves as night fell. In two particular occasions the patient reached the hospital in a state of shock. After another episode of general swelling, the patient was invited to examine her domestic environment. She brought us some parasites, collected at home, particularly on the bed. A morphological examination by entomologists proved these parasites to belong to argas reflexus (Arg.r.), one of the 31 species of soft ticks. The presence of specific IgE to a protein secreted by the Arg.r. salivary glands was in favour of immediate-type systemic reaction, as supposed by the clinical history.- - - - - - - - - - ranking = 0.83333333333333keywords = bite (Clic here for more details about this article) |
5/10. Tick inoculation in an eyelid region: report on five cases with one complication of the orbital myositis associated with Lyme borreliosis.PURPOSE: To determine the frequency and dependence of Lyme borreliosis after tick infestation in the eyelid region. MATERIAL AND methods: Five patients after tick inoculation were investigated by immunofluorescence assays for IgM and IgG system). Ophthalmologic evaluation of myositis was supported with MRI, laboratory, and internal clinical investigations. RESULTS: Four children showed negative Borrelia serology after a bite from a tick. In one case the left abducens nerve palsy was found, which was diagnosed in MRI as a thickened left lateral rectus muscle. The diagnosis of myositis with positive borrelia burgdorferi serology was consistent with Lyme borreliosis. Other laboratory examinations were negative. The symptoms were reduced after treatment with ceftriaxon. CONCLUSIONS: Lyme borreliosis was found in one in five patients after tick infestation in the eyelid region. antibiotic prophylaxis against Lyme borreliosis with ampicillin is recommended for children after a tick bite.- - - - - - - - - - ranking = 0.33333333333333keywords = bite (Clic here for more details about this article) |
6/10. Parasitization of humans in west virginia by ixodes cookei (acari: ixodidae), a potential vector of Lyme borreliosis.In 32 collections, two larvae, 33 nymphs, and one adult female ixodes cookei Packard were collected from humans in west virginia from August 1987 to May 1990. Most were attached. The ticks were found in 14 counties and were the most abundant ixodes found biting humans. One nymphal I. cookei was removed from the left axilla of a 39-yr-old woman who lives and works in Monongalia and Marion counties, W. Va. The bite was the center of an expanding erythematous lesion reaching 4 cm in diameter, clearing centrally, and typical of erythema migrans. This association and the near absence of ixodes dammini Spielman, Clifford, Piesman & Corwin from the state suggests the possibility that I. cookei may be an important vector of Lyme borreliosis in west virginia. In five separate collections, five nymphal ixodes dentatus Marx were removed from humans in four counties, implicating this species as a potential minor vector of Lyme borreliosis in west virginia.- - - - - - - - - - ranking = 0.16666666666667keywords = bite (Clic here for more details about this article) |
7/10. A seed tick infestation of the conjunctiva: Amblyomma americanum larva.ticks commonly infest humans but rarely bite the eyes. They are vectors of disease; therefore, rapid and complete removal is important. Their attachment can be so secure that removal is difficult or hazardous. We excised a larval form of Amblyomma americanum from a woodsman's conjunctiva.- - - - - - - - - - ranking = 0.16666666666667keywords = bite (Clic here for more details about this article) |
8/10. Lyme arthritis in wisconsin.Rash, severe constitutional symptoms, and arthritis developed in three persons who were bitten by ticks in wisconsin. On comparison with other reports of arthritis related to tick bites, we found that the illness of our patients had clinical features consistent with Lyme arthritis. Lyme arthritis appears not to be restricted to new england as has been previously reported.- - - - - - - - - - ranking = 0.16666666666667keywords = bite (Clic here for more details about this article) |
9/10. Crimean-congo haemorrhagic fever virus infection in the western province of saudi arabia.In 1990, an outbreak of suspected viral haemorrhagic fever involving 7 individuals occurred in Mecca in the Western Province of saudi arabia. congo-Crimean haemorrhagic fever (CCHF), not previously known to be present in saudi arabia, was incriminated. A study of the epidemiology of this virus was therefore carried out in Mecca, and in nearby Jeddah and Taif in 1991-1993; 13 species of ixodid ticks (5 Hyalomma spp., 5 rhipicephalus spp., 2 Amblyomma spp., 1 Boophilus sp.) were collected from livestock (camels, cattle, sheep, goats), and of these 10 were capable of transmitting CCHF. camels had the highest rate of tick infestation (97%), and H. dromedarii was the commonest tick (70%). Attempts to isolate virus from pools of H. dromedarii and H. anatolicum anatolicum were unsuccessful. The source of infection in 3 confirmed cases of CCHF was contact with fresh mutton and, in a suspected case, slaughtering sheep. An investigation in Mecca, which included a serological survey of abattoir workers, identified 40 human cases of confirmed or suspected CCHF between 1989 and 1990, with 12 fatalities. Significant risk factors included exposure to animal blood or tissue in abattoirs, but not tick bites. It is suspected that the CCHF virus may have been introduced to saudi arabia by infected ticks on imported sheep arriving at Jeddah seaport, and that it is now endemic in the Western Province.- - - - - - - - - - ranking = 0.16666666666667keywords = bite (Clic here for more details about this article) |
10/10. Unusual manifestations of hypersensitivity after a tick bite: report of two cases.BACKGROUND: ticks are able to transmit, through biting, various viral, parasitic, and bacterial diseases, the best known being lyme disease due to borrelia burgdorferi. In addition, ticks may also induce allergic reactions. OBJECTIVE: A study of immediate and delayed skin reactions are undertaken to give evidence of an IgE-dependent mechanism. methods: Two lumbermen reported having had skin reactions following bites by ticks. skin prick tests and intradermal tests were performed with what was most probably ixodes ricinus extract in one case. Specific IgE to whole body extract of wood tick were assayed by radioimmunoassay. Histological and immunohistologic examinations of skin biopsy obtained from a pruriginous skin lesion and from a delayed reaction following the intradermal test, were performed. RESULTS: One of them had positive immediate reactions to a prick test and an intradermal test with the same extract. Both patients had significant levels of wood tick-specific IgE antibody as well as elevated serum total IgE levels. Histologic examinations of a pruriginous lesion revealed lymphocytic dermal and perivascular infiltration, with evidence of CD8 T lymphocytes and Langerhans' cells in the perivascular infiltrates. A biopsy of the place of the delayed reaction following the intradermal skin test also showed the presence of dermal and perivascular lymphocytic infiltrates. CONCLUSION: IgE-dependent allergy to ixodes ricinus can explain allergic reactions. Standardized extracts have to be prepared with sufficient amounts of the relevant tick salivary antigens to permit diagnosis by skin and serologic tests of patients, especially lumbermen who may be allergic to ixodes ricinus.- - - - - - - - - - ranking = 0.83333333333333keywords = bite (Clic here for more details about this article) |
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