Washington Carlos Agostinho

ORCID: 0000-0001-8576-842X
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About
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Research Areas
  • Rabies epidemiology and control
  • Yersinia bacterium, plague, ectoparasites research
  • Viral Infections and Vectors
  • Viral Infections and Outbreaks Research
  • Poxvirus research and outbreaks
  • Bat Biology and Ecology Studies
  • Vector-borne infectious diseases
  • Venomous Animal Envenomation and Studies
  • Wildlife Ecology and Conservation
  • Toxin Mechanisms and Immunotoxins
  • Bacillus and Francisella bacterial research
  • Microbial infections and disease research
  • Insect symbiosis and bacterial influences
  • Streptococcal Infections and Treatments
  • Virology and Viral Diseases
  • Mosquito-borne diseases and control
  • Zoonotic diseases and public health
  • Trypanosoma species research and implications

Universidade Brasil
2024

Universidade de São Paulo
2016-2024

Rickettsia rickettsii is vectored by ticks, and some vertebrate hosts can be sources of infection to ticks during bacteremic periods. In Brazil, the main vector for R. tick Amblyomma sculptum, a member A. cajennense complex. Horses, in turn, are one major sculptum. this study, horses experimentally infected with were assessed clinical changes their capability transmit sculptum ticks. Four through either intraperitoneal injection or infestation rickettsii-infected Simultaneously, animals...

10.1186/s13071-016-1784-y article EN cc-by Parasites & Vectors 2016-09-13

Lyssavirus rabies (RABV) is an RNA virus and, therefore, subject to mutations due low polymerase replication fidelity, forming a population structure known as viral quasispecies, which the core of viruses' adaptive strategy. Under new microenvironmental conditions, fittest populations are selected, and study this process on molecular level can help determine signatures related virulence. Our aim was survey gene nucleoprotein glycoprotein genes that might be involved in virulence modulation...

10.3390/pathogens11121556 article EN cc-by Pathogens 2022-12-19

Rabies is an emerging zoonosis of global significance in the context one health. With advent mass vaccination campaigns for dogs and cats Brazil, urban rabies maintained by these animals has been controlled, but not eradicated. In contrast, wildlife-maintained virus always a challenge. Ceará, primate Callithrix jacchus significant transmitter. The aim this study was to investigate occurrence frequency wildlife area municipalities Northwest Ceará describe species infected animals. Active...

10.2139/ssrn.4839354 preprint EN 2024-01-01

This publication reports on a rabid dog in São Paulo city, Brazil, with the AgV3 variant of rabies virus related to vampire and fruit bats, which is significant importance surveillance region where typical canine AgV2 has been eradicated.

10.11606/issn.1678-4456.bjvras.2024.218100 article EN cc-by-nc Brazilian Journal of Veterinary Research and Animal Science 2024-06-17

Samples of brain cortex 12 free-range healthy wild boars from Southern Brazil were tested for RABV by dFAT and qPCR, all negative. The negative results in seropositive may be associated with exposure non-viable virus particles, proteins bat saliva or consumption contaminated carcasses.

10.1590/1678-4324-2024230666 article EN cc-by Brazilian Archives of Biology and Technology 2024-01-01

ABSTRACT: Rabies is a fatal viral disease that affects animals and humans widespread among national ecological systems. We describe the anatomopathological immunohistochemical findings of case rabies in jaguarundi (Herpailurus yagouaroundi) found rural peri-domestic area after showing aggression attacking two animals. Histopathology brain tissue showed lymphoplasmacytic meningoencephalitis associated with intracytoplasmic eosinophilic inclusion bodies neurons, gliosis neuronophagia. The...

10.1590/1678-5150-pvb-7421 article EN cc-by Pesquisa Veterinária Brasileira 2024-01-01

Abstract Of the 181 Brazilian bat species (Mammalia: Chiroptera), 46,7% occur in urban areas. However, little is known about influence of these environments on species’ ecology, and few studies community structure Brazil have been published to date. The urbanization process, however, potentially lead critical ecological changes communities’ intra interspecific pathogenic transmissions dynamics. Conversely, papers detected pathogens bats. present work aimed perform captures a...

10.21203/rs.3.rs-2561187/v1 preprint EN cc-by Research Square (Research Square) 2023-02-09

Abstract Despite its 100% lethality and approximately 59,000 human deaths a year, rabies is still in want of an effective treatment. A host trials has been described aiming at impairing the life cycle Lyssavirus (RABV), chief worldwide lyssavirus causing rabies, but with limited success. In this study, mice intranasally inoculated CVS strain RABV were serially treated 50µg/day Poly ICLC Hiltonol® jn MEM showed significantly higher survival time disease incubation period as compared to...

10.1101/2023.09.18.558218 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-09-20

Abstract Rabies is a zoonotic neurological disease with 100% lethality. Some of the rare human patients who survived after multiple drug treatment have inherited severe sequelae. The objective this study was to investigate action transfection antibodies against rabies in central nervous system mice as target therapy for rabies. Author summary present showed that 48 h RABV inoculation, injected by intracerebral route anti-RABV F(ab’) 2 complexed Bioporter® Protein Delivery Reagent (Genlantis)...

10.1101/667949 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2019-06-11
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