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Investigation of Therapeutic and Protective Action of Reaferon-ES Lipint® on Mice Infected with Avian Influenza Virus (Subtype H5N1)

Abstract

The efficacy of the therapeutic, prophylactic and urgent prophylactic schemes for the use of Reaferon-ES lipint®, a liposomal human recombinant α-interferon for oral use, was studied on mice infected with the avian influenza virus. Strain A/Chicken/Kurgan /05/2005 (subtype H5N1) of the avian influenza virus showed high virulence with respect to mice ICR. Theoretically-based calculations allowed to design an optimal therapeutic and prophylactic dose of the drug for the mice (1000 units/animal). It was observed that only after prophylactic use of Reaferon-ES lipint® it was effective in protection of the mice infected with 10 LD50 of the avian influenza virus (A/Chicken/Kurgan/05/2005, H5N1). The protection coefficient was 0.35. Under such conditions the drug efficacy was comparable with that of Tamiflu. Therefore, Reaferon-ES lipint® could be recommended for prophylaxis of the infection due not only to the season strains of the influenza virus, but also to the strains of the avian influenza virus.

About the Authors

O. K. Demina
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


A. A. Sergeev
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


A. P. Agafonov
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


A. N. Shikov
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


A. O. Sementsova
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


AL. A. Sergeev
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


A. N. Sergeev
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


I. G. Drozdov
State Scientific Centre of Virology and Biotechnology Vektor, Koltsovo, Novosibirsk Region
Russian Federation


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Review

For citations:


Demina O.K., Sergeev A.A., Agafonov A.P., Shikov A.N., Sementsova A.O., Sergeev A.A., Sergeev A.N., Drozdov I.G. Investigation of Therapeutic and Protective Action of Reaferon-ES Lipint® on Mice Infected with Avian Influenza Virus (Subtype H5N1). Antibiot Khimioter = Antibiotics and Chemotherapy. 2009;54(9-10):27-29. (In Russ.)

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ISSN 0235-2990 (Print)