Hendra virus and Nipah virus, two zoonotic paramyxoviruses in the genus Henipavirus, have recently emerged and continue to cause sporadic disease outbreaks in humans and animals. Mortality rates of up to 75% have been reported in humans, but there are presently no clinically licensed therapeutics for treating henipavirus-induced disease. A recent report indicated that chloroquine, used in malaria therapy for over 70 years, prevented infection with Nipah virus in vitro. Chloroquine was assessed using a ferret model of lethal Nipah virus infection and found to be ineffective against Nipah virus infection in vivo.
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http://dx.doi.org/10.1128/JVI.01847-09 | DOI Listing |
Comput Biol Chem
January 2025
Virology and Vaccine Research and Development Program, Department of Science and Technology-Industrial Technology Development Institute, Taguig City, Metro Manila 1631, Philippines; S&T Fellows Program, Department of Science and Technology, Taguig City, Metro Manila 1631, Philippines; Department of Biology, College of Arts and Sciences, University of the Philippines - Manila, Metro Manila 1000, Philippines. Electronic address:
Nipah virus (NiV) is a re-emerging zoonotic pathogen with a high mortality rate and no effective treatments, prompting the search for new antiviral strategies. While conventional antiviral drugs are often limited by issues such as poor specificity, off-target effects, and resistance development, nanobodies offer distinct advantages. These small, single-domain antibodies exhibit high specificity and stability, making them ideal candidates for antiviral therapy.
View Article and Find Full Text PDFCell
January 2025
Department of Microbiology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA; Department of Medicine, Division of Infectious Diseases, Brigham & Women's Hospital, Boston, MA, USA; Center for Integrated Solutions in Infectious Diseases, Broad Institute of Harvard and MIT, Cambridge, MA, USA; Howard Hughes Medical Institute, Boston, MA, USA. Electronic address:
Nipah virus (NiV) is a bat-borne, zoonotic RNA virus that is highly pathogenic in humans. The NiV polymerase, which mediates viral genome replication and mRNA transcription, is a promising drug target. We determined the cryoelectron microscopy (cryo-EM) structure of the NiV polymerase complex, comprising the large protein (L) and phosphoprotein (P), and performed structural, biophysical, and in-depth functional analyses of the NiV polymerase.
View Article and Find Full Text PDFNat Microbiol
January 2025
Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, Jilin Province, China.
Bats are natural hosts for many emerging viruses for which spillover to humans is a major risk, but the diversity and ecology of bat viruses is poorly understood. Here we generated 8,176 RNA viral metagenomes by metatranscriptomic sequencing of organ and swab samples from 4,143 bats representing 40 species across 52 locations in China. The resulting database, the BtCN-Virome, expands bat RNA virus diversity by over 3.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Mathematics, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan.
In biology and life sciences, fractal theory and fractional calculus have significant applications in simulating and understanding complex problems. In this paper, a compartmental model employing Caputo-type fractional and fractal-fractional operators is presented to analyze Nipah virus (NiV) dynamics and transmission. Initially, the model includes nine nonlinear ordinary differential equations that consider viral concentration, flying fox, and human populations simultaneously.
View Article and Find Full Text PDFPathology
December 2024
Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Viral infections of the central nervous system (CNS) have been emerging and re-emerging worldwide, and the Australasia region has not been spared. Enterovirus A71 and enterovirus D68, both human enteroviruses, are likely to replace the soon-to-be eradicated poliovirus to cause global outbreaks associated with neurological disease. Although prevalent elsewhere, the newly emergent orthoflavivirus, Japanese encephalitis virus (genotype IV), caused human infections in Australia in 2021, and almost certainly will continue to do so because of spillovers from the natural animal host-vector life cycle endemic in the country.
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