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Evidence for recombination between vaccine and wild-type mumps virus strains

Wen Zhang1, Wei Liu

  • 1School of Medical Science and Laboratory Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, People's Republic of China. z0216wen@yahoo.com

Archives of Virology
|June 25, 2010
PubMed

Insights

Mumps virus (MuV) recombination is rare. This study identified a novel recombinant MuV strain, formed from both vaccine and wild-type lineages, highlighting potential genetic reassortment in MuV evolution.

Area of Science:

  • Virology
  • Molecular Biology
  • Genetics

Background:

  • Recombination events in mumps virus (MuV) are infrequently documented.
  • Understanding MuV genetic diversity is crucial for public health and vaccine efficacy.

Purpose of the Study:

  • To investigate potential recombination events within mumps virus genomes.
  • To characterize a novel recombinant MuV strain identified through phylogenetic analysis.

Main Methods:

  • Phylogenetic analysis of 30 complete mumps virus genomes (17 vaccine, 13 wild-type).
  • Recombination analysis to identify potential genetic reassortment events.

Main Results:

  • One significant recombination event was detected between a vaccine lineage (L3/Russia/Vector) and a wild-type strain (Drag94).
  • A recombinant wild-type MuV strain (9218/Zg98) was identified, isolated from a patient with parotitis.

Conclusions:

  • This study reports a rare instance of mumps virus recombination involving both vaccine and wild-type strains.
  • The findings suggest that genetic reassortment can occur in mumps virus, potentially impacting its evolution and epidemiology.

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