The re-emergence of H1N1 influenza virus in 1977: a cautionary tale for estimating divergence times using biologically unrealistic sampling dates.
In 1977, H1N1 influenza A virus reappeared after a 20-year absence. Genetic analysis indicated that this strain was missing decades of nucleotide sequence evolution, suggesting an accidental release of a frozen laboratory strain into the general population. Recently, this strain and its descendants...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2010-06-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC2887442?pdf=render |