Comparison of the Pathogenicity in Mice of A(H1N1)pdm09 Viruses Isolated between 2009 and 2015 in Japan. Academic Article uri icon

Overview

abstract

  • The A(H1N1)pdm09 virus emerged in 2009 and continues to circulate in human populations. Recent A(H1N1)pdm09 viruses, that is, A(H1N1)pdm09 viruses circulating in the post-pandemic era, can cause more or less severe infections than those caused by the initial pandemic viruses. To evaluate the changes in pathogenicity of the A(H1N1)pdm09 viruses during their continued circulation in humans, we compared the nucleotide and amino acid sequences of ten A(H1N1)pdm09 viruses isolated in Japan between 2009 and 2015, and experimentally infected mice with each virus. The severity of infection caused by these Japanese isolates ranged from milder to more severe than that caused by the prototypic pandemic strain A/California/04/2009 (CA04/09); however, specific mutations responsible for their pathogenicity have not yet been identified.

publication date

  • January 29, 2020

Research

keywords

  • Amino Acid Sequence
  • Base Sequence
  • Influenza A Virus, H1N1 Subtype
  • Orthomyxoviridae Infections

Identity

PubMed Central ID

  • PMC7077310

Scopus Document Identifier

  • 85078770348

Digital Object Identifier (DOI)

  • 10.3390/v12020155

PubMed ID

  • 32013144

Additional Document Info

volume

  • 12

issue

  • 2