Recent human influenza A (H1N1) viruses are closely related genetically to strains isolated in 1950

Open Access

1 July 1978

journal article
research article
Published by Springer Nature in Nature

Vol. 274 (5669) , 334-339
https://doi.org/10.1038/274334a0

Abstract

Comparison of the oligonucleotide maps of the RNAs of current human influenza (H1N1) virus isolates shows these strains to be much more closely related to viruses isolated in 1950 than to strains which circulated before or after that period.

Keywords

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