[The evaluation of the degree of attenuation of cold-adapted influenza A virus strains in CBA-strain mouse and Syrian hamster models].


The pattern of the infectious process induced by the epidemic A/Leningrad/134/57 (H2N2) virus and its cold-adapted (CA) variants in CBA mice and Syrian hamsters was studied. The strains under study inoculated into the animals under a mild ether anesthesia differed by virulence, reproductive capacity in the nasopharynx, trachea and lungs, as well as by the… (More)


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