Rabies is enzootic in the State of Espírito Santo, Brazil. Every year, cattle and horses die from rabies that is transmitted by the vampire bat Desmodus rotundus. This paper describes the spread of the rabies virus by the continuous diffusion model using relaxed random walks with BEAST software. Forty-one (41) sequences of gene G from the rabies virus that was isolated from bats and domestic herbivores from several areas of the state between 2006 and 2010 were analyzed. The phylogenetic tree showed three main clusters as well as two sub-clusters under cluster 2. A spatial analysis showed that three strains of the rabies virus spread independently. In general, central Espírito Santo, which is mountainous, was the area where separation of the virus strains occurred. This physical barrier, however, was overcome at some point in time, as samples from different lineages were found in the same microarea.
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http://dx.doi.org/10.1007/s11262-012-0866-y | DOI Listing |
Int J Biol Macromol
January 2025
School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China. Electronic address:
Rabies virus (RABV) is extremely hazardous to both humans and animals, causing up to 100 % death. Accurate and easy-to-use serological evaluation of vaccine potency following immunization is crucial for rabies control. In this study, recombinant RABV glycoprotein (rG) was designed and produced in 293FT cells.
View Article and Find Full Text PDFLab Anim
January 2025
Department of Physiology, Faculty of Medicine, University of Colombo, Sri Lanka.
The immunogenicity of rabies vaccines is commonly measured by serological testing, which includes measuring rabies virus-neutralising antibody titre levels in the serum. Apart from humoral immunity, cellular immunity measurements are also helpful in assessing the immunogenicity and efficacy of rabies vaccinations. Recently, there has been an increased emphasis on cellular immunity measurements against rabies in humans and animals.
View Article and Find Full Text PDFViruses
December 2024
School of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China.
Canids act as a crucial intermediary in the transmission of rabies and , serving as co-infection hosts and pathogen carriers for both rabies and hydatid disease (HD) transmitted from animals to humans. Therefore, an effective and efficient bivalent oral vaccine for preventing HD and rabies is urgently required to reduce economic losses in husbandry resulting from rabies and HD. In this study, a full-length plasmid (pcDNA4-NPM+G+EgM123+eGFP+L) carrying the gene and fluorescence reporter genes of eGFP and four auxiliary transfection plasmids of rabies virus SRV (pcDNA4-N, pcDNA4-P, pcDNA4-G, pcDNA-L) were established by reverse genetics approaches and co-transfected to BSR cells by electrotransfection.
View Article and Find Full Text PDFMicroorganisms
January 2025
Department of Veterinary Pathobiology, Oklahoma State University, Stillwater, OK 74078, USA.
is an intracellular protozoan parasite that infects a wide range of vertebrates, including humans. Although cats are the only definitive host, any warm-blooded animal can act as a paratenic host. Throughout the years, this apicomplexan parasite has been studied due to its wide prevalence, zoonotic potential, and host behavioral alterations.
View Article and Find Full Text PDFLancet Planet Health
January 2025
San Diego Zoo Wildlife Alliance, San Diego, CA, USA; VetinWild, Nanyuki, Kenya.
Despite increasing emphasis being placed on the inclusion of upstream ecological and social perspectives for zoonotic disease control, few guidelines exist for practitioners and decision makers to work with communities in identifying suitable, locally relevant interventions and integrating these into public health action plans. With an interdisciplinary group of Kenyan stakeholders, we designed and tested a comprehensive framework for the co-design, evaluation, and prioritisation of beneficiary-oriented, ecologically and socially informed interventions for preventing and controlling outbreaks of wildlife-borne zoonoses. Our approach used four globally important wildlife-borne pathogens-Rift Valley fever virus, Congo-Crimean haemorrhagic fever virus, and the causative agents of anthrax and rabies-enabling stakeholders to develop a shared understanding of complex transmission pathways, identify a broad array of measures targeting ecological, biological, and social processes governing outbreaks of these pathogens, and explore trade-offs for specific interventions.
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