This paper describes patterns of infestation with Tunga penetrans (L., 1758) within the poor community Araruama municipality, State Rio de Janeiro, Brazil, assessed by number persons and domestic animals parasitized. The overall prevalence was 49.2% (211 parasitized hosts) 429 examined. Humans (p < 0.01) dogs were most important hosts 62.6% 35.6% respectively. Dogs considered as potential source to humans. Considering sex age groups, both measures showed a significant difference 0.01):...

Rickettsioses are re-emerging vector-borne zoonoses with a global distribution. Recently, Rickettsia sp. strain Atlantic rainforest has been associated new human spotted-fever (SF) cases in Brazil, featuring particular clinical signs: eschar formation and lymphadenopathy. These have the tick species, Amblyomma ovale . From 2010 until 2015, Brazilian Health Department confirmed 11 SF Maciço de Baturité region, Ceará, Brazil. The present study reports circulation of spp. vectors from this...

Abstract Amblyomma ovale (Ixodida: Ixodidae) Koch, 1844 is widely‐reported in the neotropical region and main vector epidemic cycle of Rickettsia parkeri strain Atlantic rainforest, a bioagent milder variety spotted fever (SF). Because species with wide geographical distributions are known to exhibit variations that influence their vectorial capacity, present study aimed analyze genetic diversity rickettsia infection A. collected during investigation surveillance SF cases Cerrado rainforest...

Ticks were collected from vegetation and animals at monthly intervals during one year (1993-1994) in an endemic area of Brazilian spotted fever the County Pedreira, State São Paulo. Six species ticks identified Amblyomma cajennense, cooperi, triste, Anocentor nitens, Rhipicephalus sanguineus Boophilus microplus. Only first was sufficiently numerous to permit a quantitative study with seasonal activity, although distribution source capture other observed are reported. This information is...

Ticks were obtained from dogs February to September of 1999 at weekly intervals, in the County Piraí, State Rio de Janeiro. Four hundred seventy four ixodids taxonomically identified, 103 Amblyomma cajennense, seven ovale, 209 Rhipicephalus sanguineus, and 155 sp. An hemolymph test associated with Giemsa's stain revealed two specimens 163 ticks tested (R. sanguineus sp), containing rickettsia-like organisms. Direct immunofluorescence verified presence spotted fever group rickettsia one...

The eco-epidemiological scenario of spotted fever (SF), a tick-borne disease that affects humans and other animals in several countries around the world, was analyzed Rio de Janeiro State, Brazil. During last 34 years, 990 SF cases were reported State (the Brazilian state with highest population density), including 116 confirmed by serology (RIFI) or PCR, among 42.39% municipalities SF. epidemiologic dynamics RJ are very heterogeneous time space, outbreaks, high mortality rates periods...

Abstract Amblyomma sculptum ( I xodida: xodidae) B erlese, 1888 is the most important tick vector in razil, transmitting bioagent of severe form spotted fever SF ) part C errado (in states M inas G erais and S ão P aulo). In another entral‐ W est region razil), a milder has been recorded. However, neither rickettsia nor involved have characterized. The aim current study was to analyse genetic variation presence A. errado, from silent areas with . Samples were subjected DNA extraction,...

The mites were slide-mounted in Hoyer's medium (Walter and Krantz 2009); they are housed at the Collection of Apterous Arthropod Vectors Importance for Public Health (Coleção de Artrópodes Vetores Ápteros Importância em Saúde das Comunidades), Oswaldo Cruz Institute, Rio Janeiro, Brazil (CAVAISC-Fiocruz).The species identified to genus using key by Brennan Goff (1977) original descriptions genus.Morphological illustrations made Olympus BX 40 with a camera lucida.Extended focal range images...

The Rhipicephalus sanguineus (Latreille) complex (Acari:Ixodidae) is composed of species with intra- and interspecific morphological variation that make their diagnosis difficult. In the present study, male specimens R. were collected from dogs in six districts three regions Brazil submitted to molecular scanning electron microscopy (SEM) analyses. Analysis COX1 gene, 12S rDNA, D-loop rDNA shows ticks classified as form two different clades. Morphological comparisons using SEM found adult...

The occurrence of ticks in four species armadillos (Priodontes maximus, Euphractus sexcinctus, Cabassous unicinctus and Dasypus novemcinctus) Pantanal wetland, State Mato Grosso do Sul, Brazil is described. During the period from May 2011 to September 2015, 542 28 wild were collected. Ticks identified as Amblyomma auricularium (Conil 1878), parvum Aragão, 1908 sculptum Berlese, 1888. This study describes for first time identification A. parasitizing P. well C. Brazil. high diversity found...

O presente estudo descreveu as intervenções realizadas em áreas silenciosas do Brasil, sob o aspecto da promoção saúde. As avaliadas durante período de 2014 a 2015 compreenderam seguintes Unidades Federadas: Mato Grosso Sul, Alagoas, Pernambuco, Rondônia, Roraima, Rio Grande Norte e Maranhão. Foram avaliados os dados sobre vigilância febre maculosa por meio das fichas epidemiológicas disponíveis no Sistema Informação Agravo Notificação, bem como fauna vetores infecções riquétsias grupo...

Coprolite samples of human and animal origin from the excavations performed at archaeological site Furna do Estrago, Brejo da Madre de Deus in state Pernambuco, Brazil sent to Paleoparasitology Laboratory Escola Nacional Saúde Pública-Fiocruz, Rio Janeiro, were analyzed for mites. After rehydratation sedimentation coprolites, alimentary contents sediments examined mites collected prepared definitive whole mounts, using Hoyer's medium. Mites following suborders orders recovered: suborder...

From August 1999 to January 2000, samples of house dust were collected from 160 domiciles in the city Juiz de Fora, State Minas Gerais, Brazil. In 36 these kitchen obtained. Prevalence rate was 77.5%, varying according geographical sector. There found 2,278 specimens mites, with 1,530 (67.2%) adult stage and 748 (32.8%) immature forms. The main species Dermatophagoides pteronyssinus, D. farinae, Euroglyphus maynei, Blomia tropicalis Tyrophagus putrescentiae. a minor incidence we...

Vinte e oito espécies de malófagos foram recolhidas aves silvestres no acervo do Zoológico São Paulo durante o ano 2003. três identificadas ao nível espécie cinco genérico. Os relatos novas Brasil associações parasitárias para a literatura são discutidos.

Abstract The Brazilian state of Goiás, untouched by spotted fever (SF) until 2012, has subsequently reported cases the disease in several regions. This study aimed to survey diversity potential vectors and rickettsia areas Goiás under environmental surveillance or case investigation for SF. Collected specimens were assayed with molecular biology technology using DNA extraction, amplification sequencing fragments genes glt A, omp B sca 4 detect ticks fleas. Amplification cytochrome oxidase...

Amblyomma sculptum (Ixodida: Ixodidae) Berlese, 1888, a member of the cajennense complex, is major vector Brazilian spotted fever (BSF) in southeastern Brazil. In this study, genetic diversity A. populations state Rio de Janeiro (RJ), Brazil, was investigated because variability tick may be related to competence. Samples from 19 municipalities 7 regions RJ were subjected DNA extraction, amplification and sequencing D-loop, cytochrome oxidase II 12S rDNA mitochondrial genes. These sequences...

Amblyomma nodosum ticks were collected from one collared anteater (Tamandua tetradactyla) in the Caatinga biome, Brazil. From sample, we isolated a Rickettsia sp. that was phylogenetically close to strain NOD, with 99.9, 100.0, and 99.8% identity for gltA, htrA, ompA genes, respectively.

Spotted fever (SF) is a tick-borne zoonosis caused by bacteria of the genus Rickettsia . The disease varies in severity from mild clinical forms to severe cases. In Brazil, rickettsii SF most serious rickettsiosis and can result death if not diagnosed treated at onset symptoms. form parkeri strain Atlantic Rainforest, this etiological agent has been reported South, Southeast Northeast regions country, areas preserved or little antropized Rainforest. Amblyomma ovale proven vector dogs are...

Spotted fever is the main rickettsial disease in Brazil. We report 12 cases of human parasitism by Amblyomma parkeri Atlantic rainforest, an area Brazil to which spotted endemic. Nine ticks were infected with Candidatus Rickettsia paranaensis.