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1.
Arq. Ciênc. Vet. Zool. UNIPAR (Online) ; 21(3): 131-134, jul-set. 2018. ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-986963

ABSTRACT

Anfíbios anuros são comumente parasitados por carrapatos da espécie Amblyomma rotundatum, os quais possuem alta predileção por animais ectotérmicos. Fêmeas e ninfas ingurgitadas de A. rotundatum foram coletadas em condições naturais a partir de um espécime de "sapo-cururu" da espécie Rhinella icterica. A identificação dos carrapatos foi feita por meio de características morfológicas. Este é o primeiro relato do parasitismo deste carrapato em sapos desta espécie no Município de Maricá, Região Metropolitana do Estado do Rio de Janeiro, Brasil.(AU)


Anuran amphibians are commonly parasitized by ticks of the species Amblyomma rotundatum, which have high predilection for ectothermic animals. Engorged females and nymphs of A. rotundatum were collected under natural conditions from a "toad-cururu" specimen of the species Rhinella icterica. The identification of ticks was made through morphological characteristics. This is the first report of the parasitism of this tick in toads of this species in the Municipality of Maricá, Metropolitan Region of the State of Rio de Janeiro, Brazil.(AU)


Los anfibios anuros son comúnmente parasitados por garrapatas de la especie Amblyomma rotundatum, los cuales poseen alta predilección por animales ectotermos. Las hembras y ninfas ingurgitadas de A. rotundatum fueron recolectadas en condiciones naturales a partir de un espécimen de "sapo cururú" de la especie Rhinella icterica. La identificación de las garrapatas se ha hecho a través de características morfológicas. Este es el primer relato del parasitismo de esta garrapata en sapos de esta especie en el Municipio de Maricá, Región Metropolitana del Estado de Río de Janeiro, Brasil.(AU)


Subject(s)
Animals , Female , Ticks/pathogenicity , Bufo marinus/parasitology
2.
An. bras. dermatol ; 93(2): 251-255, Mar.-Apr. 2018. tab, graf
Article in English | LILACS | ID: biblio-887192

ABSTRACT

Abstract: Ticks are blood-sucking arthropods that attach to human skin through oral devices causing diverse initial cutaneous manifestations, and may also transmit serious infectious diseases. In certain situations, the Health Teams (and especially dermatologists) may face difficulties in identifying the lesions and associating them to the parasites. To assist them in clinical diagnosis, we suggest a classification of the skin manifestations in primary lesions, which occur by the attachment the tick to the host (for toxicity and the anticoagulant substances in the saliva and/or marked inflammation by the penetration and permanence of the mouthparts) and secondary lesions that are manifestations of infections caused by rickettsia, bacteria, protozoa and fungi inoculated by the ticks.


Subject(s)
Humans , Animals , Skin Diseases, Parasitic/pathology , Tick-Borne Diseases/pathology , Tick Bites/pathology , Skin/parasitology , Skin/pathology , Skin Diseases, Parasitic/classification , Ticks/pathogenicity , Tick Bites/complications
3.
São Paulo; s.n; 2010. 81 p.
Thesis in Portuguese | LILACS | ID: lil-594103

ABSTRACT

Introdução. A leishmaniose visceral (LV) vem se apresentando como grave problema de saúde pública na região noroeste do Estado de São Paulo, desde o final da década de 90 e o flebotomíneo Lutzomyia longipalpis, reconhecido vetor da Leishmania (Leishmania) infantum agente etiológico dessa enfermidade, tem sido encontrado nos diversos municípios com transmissão dessa parasitose. Porém, em estudo realizado em 2004/2005 no município de Mirandópolis, localizado nesta região, este díptero foi encontrado em baixíssima freqüência, e por outro lado, observou-se uma soro-prevalência elevada, para leishmaniose visceral, em cães (60,8 por cento), sugerindo que a maciça infecção na população canina antecedeu ao período deste estudo ou outros mecanismos de transmissão poderiam estar atuando. Dentre os possíveis mecanismos de transmissão, os envolvendo carrapatos e pulgas merecem especial atenção devido à alta freqüência e intimidade com que são observados nos cães. Objetivo. O presente estudo teve como objetivo avaliar a importância de ixodídeos e sifonápteros na transmissão e manutenção da leishmaniose visceral canina (LVC). Método: Dos cães recolhidos ao Centro de Controle de Zoonoses do município de Mirandópolis, no período de agosto/200? a maio/2008, depois de identificados por sexo, idade e condição clínica (assintomáticos, oligossintomáticos ou sintomáticos) e sacrificados de forma humanitária, coletou-se sangue, fragmento de Iinfonodo poplíteo e quando presentes, carrapatos e pulgas. Os ectoparasitos foram então separados por grupos taxonômicos e identificados quanto à espécie, sexo e fase de desenvolvimento, no caso dos carrapatos. Foi realizado ensaio de imunoadsorção ligado à enzima (ELlSA) e reação da polimerase em cadeia (PCR) nas amostras obtidas dos cães e os ectoparasitas deles colhidos foram submetidos à PCR.Os resultados foram analisados pelos testes estatísticos: Indice de correlação de Pearson e Probit...


Subject(s)
Animals , Dogs , Dogs/parasitology , Ticks/pathogenicity , Insect Vectors , Leishmania/isolation & purification , Siphonaptera/pathogenicity , Enzyme-Linked Immunosorbent Assay , Polymerase Chain Reaction/instrumentation
4.
Rev. cuba. med. trop ; 61(1)ene.-abr. 2009. tab
Article in Spanish | LILACS | ID: lil-547073

ABSTRACT

En la actualidad son varias las especies de patógenos emergentes de importancia médica y veterinaria transmitidos por garrapatas. Los estudios sobre estos agentes y sus enfermedades han sido escasos en Cuba. Conocer la presencia de algunos de estos patógenos en garrapatas cubanas que afectan el ganado equino. Se procesaron 95 garrapatas colectadas de caballos domésticos, conservadas en alcohol e identificadas taxonómicamente según claves convencionales. A cada una se le realizó extracción de ADN y posteriormente diferentes reacciones en cadena de la polimerasa utilizando cebadores específicos para los grupos microbianos Borrelia burgdorferi sensu lato, Anaplasma-Ehrlichia, y Babesia-Theileria. Cada uno de los productos de las reacciones en cadena de la polimerasa fue sometido a hibridaciones en línea reversa utilizando sondas para cada grupo en cuestión, así como específicas para las principales especies de estos. Las garrapatas estudiadas pertenecían a las especies Dermacentor (Anocentor) nitens (60 por ciento), Amblyomma cajennense (38 por ciento) y Rhipicephalus (Boophilus) microplus (2 por ciento). Se detectaron 7 garrapatas Dermacentor (Anocentor) nitens infectadas con bacterias del grupo Anaplasma/Ehrlichia, y no se pudo identificar la especie en cuestión con las sondas utilizadas. Una de estas garrapatas estaba además coinfectada con Babesia bovis. Se sugiere la circulación de una nueva especie de Anaplasma o Ehrlichia no reportada antes en Cuba, por lo que se necesita estudiar un número mayor de garrapatas, así como la incorporación de nuevas sondas en la hibridación en línea reversa u otras metodologías que permitan conocer con exactitud las especies que pudiesen afectar hoy día los caballos domésticos.


At present, there are several tick-borne emerging pathogen species of medical and veterinary importance. Few studies on these agents and its diseases have been made in Cuba. To determine the presence of some of these pathogens in Cuban ticks existing in the equine cattle. Ninety five ticks collected from domestic use horses were processed, preserved in alcohol and taxonomically identified according to the set classifications. Their DNA was extracted and subjected to several polymerase chain reactions with specific primers for microbial groups Borrelia burgdorferi sensu lato, Anaplasma-Ehrlichia, y Babesia-Theileria. Each of the products from polymerase chain reactions underwent reverse line blot hybridation using probes for each group as well as specific probes for the main species included in these groups. The studied ticks belonged to Dermacentor (Anocentor) nitens (60 percent), Amblyomma cajennense (38 percent) y Rhipicephalus (Boophilus) microplus (2 percent). Seven Dermacentor (Anocentor) nitens ticks infested with Anaplasma/Ehrlichia bacteria were detected but the species in question could not be detected by the used probes. One of these ticks was also co-infested with Babesia bovis. It is suggested that a new species of Anaplasma o Ehrlichia, not reported in Cuba before now, is circulating, so studying a higher number of ticks is needed and new probes in reverse line blot hybridation or other methodologies must be incorporated to allow exactly determining the species that may affect the Cuban domestic horses at present.


Subject(s)
Animals , Anaplasma/chemistry , Babesia/chemistry , Borrelia/chemistry , Ehrlichia/chemistry , Ticks/pathogenicity , Reverse Transcriptase Polymerase Chain Reaction , Theileria/chemistry
5.
Rev. cient. (Maracaibo) ; 18(6): 662-666, nov.-dic. 2008. ilus, tab
Article in Spanish | LILACS | ID: lil-551202

ABSTRACT

Un total de 50 caninos de áreas rurales de los estados Lara, Yaracuy, Carabobo y Falcón, Venezuela, fueron examinados visualmente y mediante palpación cutánea con el fin de detectar la presencia de garrapatas. Ninguno de los animales se encontró parasitado por Rhipicephalus sanguineus, la garrapata común del perro. Se colectaron 139 especimenes adultos del género Amblyomma Koch, 1844: 72 hembras y 65 machos de la especie Amblyomma ovale Koch, 1844, y dos hembras de la especie Amblyomma triste Koch, 1844. La identificación de los especimenes se realizó mediante observación en lupa estereoscópica y con la ayuda de claves taxonómicas. Los Estados donde se colectó el mayor número de ixódidos fueron Falcón con 52 especimenes y Lara con 49, representando 38 y 36%, respectivamente. A. ovale ha sido reportada como vector natural de Hepatozoon canis en áreas rurales. La especie A. triste fue colectada sólo en un canino del estado Yaracuy. Esta especie ha sido incriminada como el vector biológico de varios agentes rickettsiales patógenos, tanto para humanos como para animales domésticos y salvajes, por lo que se resalta la importancia del género Amblyomma en la transmisión de enfermedades zoonóticas.


Fifty dogs from the rural areas of Lara, Yaracuy, Carabobo and Falcón States of Venezuela were sampled through the visual and touch techniques in search of the presence of ticks. All the dogs were free of the brown dog tick Rhipicephalus sanguineus. A total of 139 adult ticks of the genus Amblyomma Koch, 1844 were collected: of them, 65 males and 72 females were identified as Amblyomma ovale Koch, 1844, whereas two females belonged to the species Amblyomma triste Koch, 1844. The observation through stereomicroscope, as well as the use of taxonomic keys, were employed in the identification of the collected specimens. Most of the ticks were collected in Falcón and Lara States, totalling 52 (38%) and 49 (36%), respectively. The species A. ovale has been reported as a natural vector of the protozoan Hepatozoon canis in rural areas. A. triste was collected only in one dog in Yaracuy State. This species has been incriminated as a biological vector of several rickettsial agents to the men and animals. The actual role of the genus Amblyomma as vector of zoonotic disease agents is highlighted.


Subject(s)
Animals , Dogs , Ticks/pathogenicity , Dogs/parasitology , Rural Areas , Parasitology/trends , Veterinary Medicine
6.
Article in English | LILACS | ID: lil-479336

ABSTRACT

Brazilian spotted fever is caused by the bacterium Rickettsia rickettsii, which is the most pathogenic species of the spotted-fever rickettsiae group and is transmitted by the bite of infected ticks. Amblyomma cajennense is the most important tick species involved in the cycle of this zoonosis in Brazil as it presents low host specificity, great number of natural reservoirs and wide geographic distribution. It was first described in the state of São Paulo in 1929 and later in Rio de Janeiro, Minas Gerais and Bahia. The number of cases decreased in the 1940's with the development of new plague control techniques and antibiotics. In the last decades, the number of new cases has increased. The current review aimed at reporting some of the epidemiological and public health aspects of this reemergent disease with new foci, mainly in the southeastern region of Brazil.


Subject(s)
Ticks/pathogenicity , Rickettsia/pathogenicity , Zoonoses/epidemiology , Zoonoses/etiology
7.
Journal of the Egyptian Society of Parasitology. 2001; 31 (2): 365-372
in English | IMEMR | ID: emr-57193

ABSTRACT

In this work, 19 species and subspecies of ixodid and argasid ticks: Hyalomma dromedarii, H. impeltatum, H. Anatolicum excavatum, H. A. anatolicum, H. Truncatum, H. M. Marginatum, H. m. rufipes, H. m. turanicum, Boophilus annulatus, Rhipicephalus sanguineous, R. turanicus, R. guilhoni, R. camicasi, Amblyomma lepidium, A. marmoreum, A. variegatum, Argus persicus, A. hermanni and A. Arboreus were collected from different localities in five governorates [Giza, Sharqia, Ismailia, El-Behaira and Sinai]. Hyalomma species were found on camels and cows. B. Annulatus was found only on cows, Rhipicephalus species on dogs, camels and sheep. Amblyomma species were found on imported camels and Argus species on chickens, herons and pigeons. Examination of camels, cows, sheep and chickens infested with ticks showed Theileria annulata, Babesia bigemina, B. Ovis and Babesiosoma gallinarum, respectively. Hemoproteus columbae were found in pigeons


Subject(s)
Animals , Tick Infestations/veterinary , Ticks/pathogenicity , Animals, Domestic/parasitology , Blood/parasitology , Tick Infestations/transmission , Ectoparasitic Infestations
8.
Rev. Soc. Bras. Med. Trop ; 32(6): 613-9, nov.-dez. 1999. ilus, tab
Article in English | LILACS | ID: lil-259916

ABSTRACT

Foram coletados espécimes de carrapatos em 1993, 1996, 1997, e 1998, principalmente de animais selvagens e domésticos, nas Regiöes Sudeste e Centro-oeste do Brasil. Nove espécies de Amblyommidae foram identificadas: Anocentor Nitens, Amblyomma cajennense, Amblyomma ovale, Amblyomma fulvum, Amblyomma striatum, Amblyomma rotundatum, Boophilus microplus, Boophilus annulatus e Rtiipicephalus sanguineus. Analisou-se o potencial destas nove espécies de carrapatos como transmissores de patógenos para o homem. Um Flaviviridade Flavivirus foi isolado de espécimes de Amblyomma cajennense coletados de um capivara doente (Hydrochaeris hydrochaeris). Amblyomma cajennense é o transmissor principal da Rickettsia rickettsii (=R rickettsi), o agente causador da febre maculosa no Brasil. Os mamíferos selvagens, principalmente capivaras e veados infestados por carrapatas vivem em próximo contato com gado, cavalos e cachorros, com quem compartilham os mesmos carrapatos, oferecendo risco de transmissäo destas zoonoses silvestres aos animais domésticos e ao homem


Subject(s)
Ticks/pathogenicity , Zoonoses/parasitology , Animals, Domestic , Brazil , Disease Reservoirs , Tick-Borne Diseases
9.
Parasitol. día ; 22(1/2): 29-32, ene.-jun. 1998. tab
Article in English | LILACS | ID: lil-258033

ABSTRACT

El presente estudio se realizó en el área urbana de la Cd. de Cuernavaca, Morelos, México. Durante un periodo de 3 años (1992-1995), una muestra de 1742 perros de dos clínicas veterinarias, fueron examinados para detectar la presencia de garrapatas rhipicephalus sanguineus en cualquier estado parásito, éstas fueron colectadas e identificadas. Las tasas de prevalencia fueron calculadas por mes y año y se distribuyeron por edad y sexo. La prueba de Chi cuadrada (p < 0,05) se utilizó par comparar las proporciones de perros positivos y negativos a la infestación. En el periodo, la prevalencia a la infestación fue del 20 por ciento, no existiendo diferencias entre años (p>0,05); se colectaron especímenes durante todo el periodo de estudio. Las condiciones climáticas del área y la presencia continua del huesped favoreció el ciclo de vida del parásito, calculando 2,5 generaciones por año. No existieron diferencias (p>0,05) entre edad y sexo o año. En este estudio, los factores que probablemente más influenciaron la prevalencia fueron los hábitos de vida doméstica y el medio ambiente en que viven los perros


Subject(s)
Animals , Dogs , Dogs/parasitology , Tick Infestations/epidemiology , Ticks/pathogenicity , Mexico/epidemiology
10.
Rev. bioméd. (México) ; 9(1): 26-37, ene.-mar. 1998.
Article in Spanish | LILACS | ID: lil-248099

ABSTRACT

En Yucatán, México existe un gran número de grupos entomológicos que pueden tener efectos en detrimento del bienestar de la salud animal. Algunos de estos grupos son importantes ya que causan procesos patológicos en los animales domésticos y/o actúan como vectores de ciertas enfermedades. Boophilus microplus, Varroa jacobsoni y Cochliomya hominivorax han sido los parásitos con mayor estudio en nuestra región. Sin embargo, Haematobia irritans, Stomoxis calcitrans, Tabanus sp, Oestrus ovis and Riphicephalus sanguineus, requieren de estudios más precisos para conocer su ciclo biológico y el comportamiento poblacional en nuestra región. El objetivo del presente artículo es proporcionar un panorama de los grupos entomológicos más importantes, desde el punto de vista veterinario, que han sido reportados en el estado de Yucatán


Subject(s)
Animals , Mites/parasitology , Mites/pathogenicity , Diptera/parasitology , Diptera/pathogenicity , Entomology , Screw Worm Infection/epidemiology , Screw Worm Infection/veterinary , Mite Infestations/epidemiology , Mite Infestations/veterinary , Myiasis , Tick Infestations/epidemiology , Tick Infestations/veterinary , Ticks/parasitology , Ticks/pathogenicity , Veterinary Medicine
11.
Medicina (B.Aires) ; 57(4): 445-6, 1997.
Article in English | LILACS | ID: lil-209880

ABSTRACT

Attacks by adult stages of the soft tick Argas (Argas) neghmei (Acari:Argasidae) on inhabitants of the High Andean plateau of Argentina are reported . This is the first local report of this species, which was previously found in the north of Chile. Taxonomic differences between A (A.) neghmei and other neotropical and exotic species of the genus are underlined. The status of the knowledge about the Argentine argasid fauna is briefly described.


Subject(s)
Animals , Ticks/classification , Ticks/pathogenicity , Argentina
12.
Pediatr. día ; 12(5): 275-82, nov.-dic. 1996. tab
Article in Spanish | LILACS | ID: lil-194979

ABSTRACT

Perros y gatos son los animales domésticos más comunes en la vivienda humana. Brindan afecto, compañía, agrado y en el caso de los perros, además contribuyen a la seguridad del hogar. Por eso, muchas personas los consideran integrantes necesarios, e incluso indispensables, del núcleo familiar. Pero también pueden representar riesgo de transmisión zoonótica de infecciones por agentes de diverso tipo, tanto virales bacterianos, fúngicos, como parasitarios


Subject(s)
Humans , Animals , Cats , Dogs , Animals, Domestic/parasitology , Disease Reservoirs , Impacts of Polution on Health , Zoonoses/transmission , Animals, Domestic/microbiology , Animals, Domestic/virology , Campylobacter Infections , Cat-Scratch Disease , Echinococcosis , Larva Migrans , Rabies/prevention & control , Salmonella Infections , Salmonella Infections, Animal , Siphonaptera/pathogenicity , Ticks/pathogenicity , Tinea , Toxoplasmosis , Vaccination , Zoonoses/classification , Zoonoses/etiology
13.
Rev. bras. ciênc. vet ; 2(2): 43-46, mai./ago. 1995. il.
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1401463

ABSTRACT

Vinte e quatro bezerros mestiços de Bos indicus X B. taurus, com aproximadamente nove meses de idade, foram distribuídos em três grupos. Grupo I, composto por 18 animais com características fenotípicas consagradas do zebu (presença de cupim, barbeia, pregas prepuciais ou vulvares longas, pele fina e frouxa). O grupo lI foi constituído por seis animais também azebuados, entretanto, com as características acima mencionadas, incompletas e o grupo 111, foi considerado como a reunião (24 animais) dos dois grupos. Sem prejuízo desta classificação, os animais foram alojados em três piquetes. Em cada lote, ficaram oito animais (seis do grupo I e dois do grupo 11). Durante o período experimental, ou seja, de set/88 a ago/89, não foi realizada qualquer infestação artificial dos animais. A cada 14 dias, eram contadas, de todo o hemisfério direito de cada animal, as fêmeas ingurgitadas de Boophilus microplus com tamanho superior a 4,5 mm. O B. microplus esteve presente durante todo o período, contudo, o grau de infestação nos animais foi maior entre maio e setembro. Os bovinos do grupo 11 tiveram uma quantidade significativamente maior de B. microplus do que os animais do grupo I.


Twenty four calves cross-bred (Bos indicus x B. taurus) of both sexes and approximately nine months old were assorted in there groups. Group I comprised eighteen calves with typical zebu phenotype. Group 11 and group 111 were, respectively, consisted of six cross-bred calves without typical zebu phenotypes and ali calves in lhe experiment. Ali calves were kept in· Boophilus microplus infested pastures during lhe experimental period of one year, from Sept/88 to Aug/89. Tick numbers were assessed by counting ali engorged females lenghtierthan 4,5mm. Ticks were present throughout lhe year by infestation burdens was higher from May to September. Tick burdens were higher in group 11 in comparasion to group I.


Subject(s)
Animals , Cattle , Parasitic Diseases, Animal/transmission , Ticks/pathogenicity , Cattle/parasitology , Disease Susceptibility/veterinary , Parasite Load/veterinary
14.
Journal of the Egyptian Society of Parasitology. 1994; 24 (1): 177-85
in English | IMEMR | ID: emr-32808

ABSTRACT

Species of Babesia are intra-erythrocytic protozoal parasites of many species of mammalians in all parts of the world where the tick-vectors are found. Babesiosis or piroplasmosis causes considerable damage to the livestock and other animals. Human babesiosis has been documented in many countries. Consequently, babesiosis is a zoonotic disease of medical, veterinary and economic importance. In this study, a total of 310 rodents of different species were trapped from different areas in Riyadh Region, Saudi Arabia. These rodents were Rattus rattus [142], R. norvegicus [24], Mus musculus [8], Meriones carassus [56], Jaculus jaculus [16], Gerbillus cheesmani [50], and Acomys c. dimidiatus [14]. Natural Babesia infection was parasitologically detected in 95 of them [30.65%]. The highest infection rate was among R. rattus [34.5%]. The lowest rate was among G. cheesmani [20%]. None of the M. musculus was infected. Since most of these rodents are commensal, i.e. living in close contact with man, a general discussion on the pathogenesis, immunity and diagnosis was given


Subject(s)
Babesiosis/epidemiology , Blood Cells , Ticks/pathogenicity , Insect Vectors , Rodent Control
15.
Journal of the Faculty of Medicine-Baghdad. 1994; 36 (4): 537-40
in English | IMEMR | ID: emr-32927

ABSTRACT

Fourty patients with febrile illness without apparent cause that were admitted to Baghdad Teaching Hospital during a period of one year were screened for Rickettsia Conori and Rickettsia typhi infections. Six cases, R conori and one case with R. typhi were documented


Subject(s)
Rickettsia typhi/pathogenicity , Ticks/pathogenicity , Fever/pathology
16.
Journal of the Egyptian Public Health Association [The]. 1983; 58 (5-6): 344-9
in English | IMEMR | ID: emr-3391

ABSTRACT

Since the Daubney and Hudson report in 1933 of nymphal Rhipicephalus appendiculatus ticks transmitting Rift Valley fever [RVF] virus in Kenya, there has been much speculation regarding the role of ticks in maintaining and transmitting this virus. We fed laboratory reared larvae, nymphs, and adults of five Egyptian tick species on viremic hamsters and the subsequent developmental stages or generation of these ticks on suscepetible hamsters to determine whether these tick species can maintain and transmit the virus. All results were negative or essentially negative. The tick species were Hyalomma dromedarii, H. impeltatum, H. marginatum rufipes, Rhipicephalus sanguineus and R. simus. These species commonly infest the various domestic animals that were infected by RVF virus during the 1977 -1978 RVF epidemic in Egypt


Subject(s)
Ticks/pathogenicity
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