A5065791319- Research on Leishmaniasis Studies
- Parasitic Diseases Research and Treatment
- Parasite Biology and Host Interactions
- Trypanosoma species research and implications
- Mosquito-borne diseases and control
- Viral Infections and Vectors
- Vector-Borne Animal Diseases
- Animal Disease Management and Epidemiology
- Vector-borne infectious diseases
- Malaria Research and Control
- Insect and Pesticide Research
- Parasites and Host Interactions
- Insect symbiosis and bacterial influences
- Insect Pest Control Strategies
- Freshwater macroinvertebrate diversity and ecology
- T-cell and Retrovirus Studies
- Zoonotic diseases and public health
- Insect Resistance and Genetics
- Insect and Arachnid Ecology and Behavior
- Bird parasitology and diseases
- Insect behavior and control techniques
- Invertebrate Immune Response Mechanisms
- Venomous Animal Envenomation and Studies
- Parasitic infections in humans and animals
- Fossil Insects in Amber
Fundação Oswaldo Cruz
2016-2025
San Antonio College
2024
National Institute of Amazonian Research
2000-2023
Amazon (United States)
2016-2022
Leoni (Germany)
2010-2018
Fundação de Medicina Tropical
2006
Universidade Federal do Ceará
1995
Rondônia State has been subject to a higher percentage of deforestation than any other Brazilian state in the Amazon basin. Rondônia's protected forests are extremely important because their biodiversity attests species richness that lost human encroachment. Phlebotomine sand flies Leishmania vectors have potential function as environmental bioindicators. A fly survey was conducted near Brazil-Bolivian border, ombrophylous forest Guajará-Mirim Park, which is located between municipalities...
Three new species of Atrichopogon with spotted wings the family Ceratopogonidae (Diptera: Culicomorpha) from Amazonas State Brazil are described and illustrated. Male female specimens janseni sp. nov., A. riopardensis sergioluzi nov. were associated by wing pigmentation patterns: two darker spots, one over r-m other in cell r3, posterior to apex R3. have tergite 9 that is 2.5 × as broad long, not extending gonocoxite, sternite stout, sub-trapezoidal, distal margin a row stout spines;...
Culicoides biting midges are small insects that proven vectors of pathogens cause disease in animals and humans. There 1,368 species the world, including 149 Brazil 122 Brazilian Amazon Basin. This study documents specimens were collected between 2013 2015 municipalities Alvorada d'Oeste, Buritis, Cacoal, Costa Marques, Espigão Guajará-Mirim, Pimenta Bueno, Porto Velho São Francisco Guaporé. Collections performed using HP light traps forest, pasture peridomicilie environments.Species newly...
The immunomodulatory properties of lipophosphoglycans (LPG) from New World species Leishmania have been assessed in infantum and braziliensis, the causative agents visceral cutaneous leishmaniasis, respectively. This glycoconjugate is highly polymorphic among with variation sugars that branch off conserved Gal(β1,4)Man(α1)-PO4 backbone repeat units. Here, activity LPGs amazonensis, agent diffuse was evaluated two strains Brazil. One strain (PH8) originally isolated sand fly other (Josefa) a...
Three species of Corethrella Coquillett, 1902 from the state Amazonas, Brazil are described as new to science based on female adult specimens. cabocla Feijó, Belchior, Marialva & Pessoa sp. nov. possesses four large setae frons between ventromedial area ommatidia, a wide clypeus with 1–4 setae, wing apex R2 basal M2 and midlength band, abdomen entirely dark brown. ielemdei Ramires, Lima an elongated coronal suture, squarish 42–43 M1 band scales subbasal areas anterior margin, legs...
"Cutaneous Leishmaniasis in Ceara State Northeastern Brazil: Incrimination of Lutzomyia whitmani (Diptera: Psychodidae) as a Vector Leishmania braziliensis Baturite Municipality" published on Jun 1994 by The American Society Tropical Medicine and Hygiene.
Sand flies (Diptera: Psychodidae) are responsible for the transmission of protozoan parasites that cause leishmaniases. They found predominantly in forests, but some species exploit environments have been subject to deforestation and subsequent human colonization. Studies conducted Brazil over past 30 years show adapting peri-urban urban settings. We evaluated sand fly diversity abundance rural settlement Rio Pardo, Presidente Figueiredo Municipality, Amazonas State, Brazil. Settlement...
Anopheles darlingi is the major malaria vector in countries located Amazon region. aquasalis and albitarsis s.l. are also proven vectors this nuneztovari triannulatus were found infected with Plasmodium vivax; however, their status as not yet well defined. Knowledge of susceptibility anopheline populations to infection necessary better understand capacity. Laboratory colonization An. darlingi, main vector, has be difficult presently only available autonomous colony. Larvae s.l., collected...
Mosquitoes (Culicidae) represent the main vector insects globally, and they also inhabit many of terrestrial aquatic habitats world. DNA barcoding metabarcoding are now widely used in both research routine practices involving mosquitoes. However, these methodologies rely on information available databases consisting barcode sequences representing taxonomically identified voucher specimens. In this study, we assess availability public data for mosquitoes online databases, focusing...
In this study, we identified the phlebotomine sandfly vectors involved in transmission of American Cutaneous Leishmaniasis (ACL) Assis Brasil, Acre, Brazil, which is located on Brazil-Peru-Bolivia frontier. The genotyping Leishmania phlebotomines was performed using polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism. A total 6,850 sandflies comprising 67 species were captured by CDC light traps rural areas municipality. Three found state Acre for first time:...
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Bats (Chiroptera) are among the most diverse and geographically dispersed mammals. They of great importance to ecosystem, as pollinators, seed dispersers pest controllers, in addition being hosts several parasitic arthropods, including ticks, mites, lice, fleas flies. Their diet includes tissue blood or other body fluids bats. reservoirs disease-causing agents, many them pathogenic humans, such bacteria, well protozoa, viruses fungi. This study was conducted Monte Negro, Rondônia, Brazil...
Mosquito diversity and disease transmission are influenced by landscape modifications, i.e., vectors pathogens previously found only in forests now close to human environments due anthropic changes. This study determined the distribution of mosquitoes forest order analyze potential Amazonian arboviruses. Mosquitoes were collected 1) vertical stratification from canopy ground areas using Hooper Pugedo (HP) light traps attraction 2) horizontal HP peridomicile, edge, near Rio Pardo rural...
Abstract Background Psorophora mosquitoes are exclusively found in the Americas and have been associated with transmission of encephalitis West Nile fever viruses, among other arboviruses. Mosquito salivary glands represent final route differentiation many parasites. They also secrete molecules powerful pharmacologic actions that modulate host hemostasis, inflammation, immune response. Here, we employed next generation sequencing proteome approaches to investigate for first time composition...
Phlebotomine sand flies (Diptera: Psychodidae) are insects of medical importance due to the role that some species play in transmission leishmaniasis. This work aimed study ecological aspects among fauna inhabiting two different environments: várzea (lowland Amazonian forest) and terra firme (upland forest), both located Tefé Municipality, Amazonas State, Braziland detect Leishmania infection those phlebotomine populations. Sand were collected using HP light traps. Collection took place over...
We obtained ribosomal and mitochondrial DNA sequences from residents of Amazonas state, Brazil, with Mansonella parasitemias. Phylogenetic analysis these confirm that M. ozzardi perstans parasites occur in sympatry reveal the close relationship between Africa providing insights into parasite's New World origins.
Hexapods, commonly known as insects, are a neglected taxonomic group in the Fernando de Noronha archipelago, with unanswered questions about their species richness and ecological processes which they involved (e.g., colonization, introduction, establishment, extinction). Herein, we provide an updated Hexapod checklist current nomenclatural combinations. The entomofauna of archipelago is currently composed 453 21 orders. orders, respective number species, are: Blattaria (9), Coleoptera (118),...
Abstract. In the Brazilian village of BoqueiraTo do Renato Parente, Ceará State, where visceral leishmaniasis is endemic, significant variation in abundance phlebotomine sandflies between different types vegetation was demonstrated by castor oil sticky trap collections. Population densities Lutzomyia longipalpis (Lutz & Neiva) were higher beans and maize crops than surrounding open tree scrub. Significant relationships detected abundances aphids, suggesting aphid honey dew as a potential...
This study investigated some epidemiological aspects of the Mansonella ozzardi in municipality Coari, Amazonas. Clinical symptoms were correlated with filarial infection and parasitic rates (PIR) estimated simuliid vectors. The general M. human prevalence rate was 13.3% (231/1733), which 10.2% (109/1069) from urban area 18.4% (122/664) rural area. higher men (14.5% 19.7% rural) than women (6.7% 17.2% occurred most age groups. indices microfilaremics people > or = 51 years old (26.9% 61.5%...
Mansonella ozzardi is a poorly understood human filarial parasite with broad distribution throughout Latin America. Most of what known about its parasitism has come from epidemiological studies that have estimated incidence using light microscopy. Light microscopy can, however, miss lighter, submicroscopic, infections. In this study we compared M. estimates made microscopy, PCR. 214 DNA extracts Large Volume Venous Blood Samples (LVVBS) were taken volunteers two sites in the Rio Solimões...
Despite the broad distribution of M. ozzardi in Latin America and Caribbean, there is still very little DNA sequence data available to study this neglected parasite's epidemiology. Mitochondrial (mtDNA) sequences, especially cytochrome oxidase (CO1) gene's barcoding region, have been targeted successfully for filarial diagnostics epidemiological, ecological evolutionary studies. MtDNA-based studies can, however, be compromised by unrecognised mitochondrial pseudogenes, such as Numts. Here,...