(N|TIOLOGIQ(B, (N\PIDEMIOLOGIQ(B, (NLE^ENIE(B, (NPROFILAKTIKA GRIPPA I DRUGIH RESPIRATORNYH INFEKCIJ (B:s (NmATERIALY (B2-(NGO SOWE]ANIQ \KSPERTOW SOCIALISTI^ESKIH STRAN PO GRIPPU (B((NAPRELX(B, 1977 (NG(B.) /s - (NwSESO@ZNYJ NAU^NO(B-(NISSLEDOWATELXSKIJ INSTITUT GRIPPAs ((NlENINGRAD (B:s (NiZD(B-(NWO wnii GRIPPA mz sssr(B,s, 1978)
(NsPISOK LIT(B. (NW KONCE STATEJs
Keywords: (NiNFEKCIONNYE BOLEZNIs; (NgRIPP(B- (NPROFILAKTIKAs; (NrESPIRATORNYE INFEKCII (B- (N\TIOLOGIQs