E.COLI STRAIN 987P 1RP IS≧1×10^9CFU/DOSE PRIOR TO INACTIVATION;E.COLI STRAIN TYPE 1 1RP IS≧1×10^9CFU/DOSE PRIOR TO INACTIVATION;E.COLI STRAIN K88 1RP IS≧2×10^9CFU/DOSE PRIOR TO INACTIVATION;E.COLI STRAIN K99 1RP IS≧2×10^9CFU/DOSE PRIOR TO INACTIVATION;C.PERFRINGENS TYPE C ≧15,000 MLD PRIOR TO INACTIVATION;RP＝RELATIVE POTENCY