[Efficacy of combined administration of ridostin and oseltamivir (tamiflu) for therapy and prophylaxis of experimental infection induced by influenza virus A (H5N1) in mice].

AIM

Study of possibility of treatment-prophylaxis effect increase during combined administration of ridostin and tamiflu in experiments in mice infected with highly pathogenic influenza virus strain A/chicken/Kurgan/05/2005 (H5N1).

MATERIALS AND METHODS

Balb/c line mice infected intranasally with influenza virus at 100 and 10 LD50 doses received ridostin and tamiflu as monopreparation or the combined variant before or after the infection. The mice were observed for 16 days, lethality rate, protection coefficient and average life span were evaluated. Virus concentration in lungs was determined by using titration in MDCK cell line.

RESULTS

Combined administration ofridostin and tamiflu after the infection increased survivability of the animals when compared with the control group, and reduced influenza virus concentration in lungs.

CONCLUSION

Treatment effect during combined administration of ridostin and tamiflu after influenza virus infection increased.