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Related Concept Videos

Viruses with RNA Genomes01:29

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RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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Related Experiment Video

Updated: Aug 6, 2025

Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting
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Pseudotyped Viruses for Orthohantavirus.

Tingting Ning1, Weijin Huang2, Li Min1

  • 1Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, China.

Advances in Experimental Medicine and Biology
|March 15, 2023
PubMed
Summary
This summary is machine-generated.

Orthohantaviruses are emerging zoonotic viruses causing severe diseases in humans. Pseudotyped viruses offer a safer alternative for studying viral entry, immune responses, and developing vaccines against these important pathogens.

Keywords:
ANDVHTNVNeutralizationOrthohantavirusPseudotyped virus

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Area of Science:

  • Virology
  • Emerging Infectious Diseases
  • Molecular Biology

Background:

  • Orthohantaviruses are enveloped, RNA viruses transmitted by small mammals, causing hemorrhagic fever with renal syndrome (HFRS) and hantavirus cardiopulmonary syndrome (HCPS).
  • These viruses pose significant public health concerns as emerging zoonotic pathogens.

Purpose of the Study:

  • To discuss the general properties of orthohantaviruses.
  • To review the construction of pseudotyped orthohantaviruses using various packaging systems.
  • To highlight the current applications of pseudotyped orthohantaviruses in research and vaccine development.

Main Methods:

  • Construction of pseudotyped viruses using different packaging systems.
  • Utilizing pseudotyped viruses as safer alternatives to authentic orthohantaviruses.

Main Results:

  • Pseudotyped orthohantaviruses enable the study of viral entry mechanisms and host-pathogen interactions with reduced biosafety concerns.
  • These tools facilitate research into immune responses, viral antigenicity, and the identification of entry inhibitors.

Conclusions:

  • Pseudotyped orthohantaviruses are valuable tools for understanding orthohantavirus biology and developing countermeasures.
  • Their construction and application are crucial for advancing research on HFRS and HCPS and for potential vaccine development.