FIELD: biotechnology.
SUBSTANCE: invention relates to novel strains of Bacillus thuringiensis B-1272 and Bacillus thuringiensis B-1273 deposited in the collection of bacteria, bacteriophages and fungi of the Federal State-Funded Institution of Science "State Research Centre of Virology and Biotechnology "Vector". The index of neutralisation of the infectious activity of virus A/H3N2 while using the preparations based on the culture fluid of any of the proposed strains is 0.5-3.2 lg.
EFFECT: strains have the ability to neutralise the infectious activity of the human influenza virus.
2 cl, 1 tbl, 8 ex
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