Influenza A Virus Reassortment

  • John Steel
  • Anice C. Lowen
Part of the Current Topics in Microbiology and Immunology book series (CT MICROBIOLOGY, volume 385)


Reassortment is the process by which influenza viruses swap gene segments. This genetic exchange is possible due to the segmented nature of the viral genome and occurs when two differing influenza viruses co-infect a cell. The viral diversity generated through reassortment is vast and plays an important role in the evolution of influenza viruses. Herein we review recent insights into the contribution of reassortment to the natural history and epidemiology of influenza A viruses, gained through population scale phylogenic analyses. We describe methods currently used to study reassortment in the laboratory, and we summarize recent progress made using these experimental approaches to further our understanding of influenza virus reassortment and the contexts in which it occurs.


Influenza Virus Avian Influenza Avian Influenza Virus High Resolution Melt Swine Influenza Virus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



A/Panama/2007/1999 (H3N2)


A/finch/England/2051/1991 (H5N2)


A/Moscow/10/1999 (H3N2)


A/Puerto Rico/8/1934 (H1N1)


A/Netherlands/602/2009 (H1N1)


A/Anhui/1/2013 (H7N9)


Reverse transcription


Polymerase chain reaction


High resolution melt analysis


Cycle threshold


Complementary DNA


Double stranded DNA


Viral ribonucleoproteins


Highly pathogenic avian influenza


Low pathogenic avian influenza


Triple reassortant internal gene


2009 pandemic H1N1 influenza virus



Research in the authors’ laboratories is supported by the NIH under R01 AI099000 (to AL) and the Center for Excellence in Influenza Research and Surveillance (CEIRS) contract number HHSN272201400004C (to JS and AL).


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© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Microbiology and ImmunologyEmory University School of MedicineAtlantaUSA

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