Study of control efficiency of effective viable microbial products duannaian on mice infected with bacteria.

Mice were infected with E.coli O1 and O2 respectively by both intravenous injection and intraperitoneal injection after orally administrated duannaian 14～18h.The survival rates of duannaian group with intraperitoneal injection were 60%(control group was 10%) and 50%(control group was zero) respectively.The survival rates of duannaian group with intravenous injection were 90%(control group was 30%) and 60%(control group was 10%) respectively.Therapeutic effects of duannaian were investigated in mice which were orally administrated duannaian after abdominal infected with Staphyloccocus aureus and E.coli O1 respectively.The result showed that the survival rates of duannaian group 100mg/kg,1000mg/kg,2000mg/kg,3000mg/kg and distilled water group were 40%,70%,70%,80% and 0 respectively after infected with Staphyloccocus aureus.As for the groups in which mice were infected with E.coli O1,the result indicated that the survival rates of duannaian group 1000mg/kg,1500mg/kg,2000mg/kg and distilled water group were 40%,60%,50% and 10% respectively.Therefore,duannaian can enhance immune function.