1887

Abstract

SUMMARY

Recombinants of human influenza type A viruses, A/Krasnodar/101/1959 (H2N2) or A/Habarovsk/15/1976 (H3N2), and fowl plague virus (FPV), strain Weybridge (H1N1) were obtained. The genome of the recombinant obtained by recombination of influenza A/Habarovsk/15/1976 virus and FPV contained the genes 4 (HA) and 6 (NA) derived from the influenza A/Habarovsk virus and all the other genes [1, 2, 3, 5 (NP), 7 (M), 8 (NS)] from FPV. The genome of the recombinant of A/Krasnodar/101/1959 virus and FPV contained the genes 2, 4 (HA) and 6 (NA) derived from influenza A/Krasnodar virus and all the other genes [1, 3, 5, (NP), 7 (M), 8 (NS)] from FPV. The recombinants, like FPV, gave high virus yields in chick embryos and could multiply at high temperatures (40 and 42 °C), but, like human influenza viruses, were non-pathogenic for chickens and did not replicate in chick embryo fibroblast culture, but did replicate in a human conjunctiva cell line, clone 1-5C-4. The virion transcriptase of the recombinants, in a number of properties determined , was similar to FPV transcriptase but not to the human influenza virus enzyme.

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1979-04-01
2022-01-19
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