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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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Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
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[Orthomyxoviruses].

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Orthomyxoviruses are a viral family with segmented, negative-sense RNA genomes. This review focuses on influenza viruses, key pathogens impacting public health.

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Area of Science:

  • Virology
  • Molecular Biology

Context:

  • Orthomyxoviridae is a diverse viral family.
  • Influenza A virus poses significant public health challenges.

Purpose:

  • To review the general properties of Orthomyxoviruses.
  • To highlight key characteristics of influenza viruses.

Summary:

  • Orthomyxoviruses feature segmented, single-stranded, negative-sense RNA genomes.
  • Influenza viruses, belonging to this family, are critical human pathogens.

Impact:

  • Provides a foundational understanding of Orthomyxoviridae.
  • Informs research and public health strategies concerning influenza viruses.