Tikhonova-Heider A M, Klimov A I, Smith A J, Grilli B, Oxford J S, Ghendon Y Z
Arch Virol. 1986;89(1-4):255-9. doi: 10.1007/BF01309894.
Genetic analysis of influenza B virus strains isolated during concurrent epidemics (February-March 1982) in three physically separated schools was carried out using the RNA:RNA hybridization technique. The data supports the hypothesis that the influenza B virus epidemics in each school were initiated by different viruses and the variability of the strains in a closed community was found to be minor though some variants were detected.
