Communities of AsputillU$ ~on F1l1Vi rnident in soils planted with collon were com~ among ~erll ueu in the KNthem United St..tes. lnddmce of A flauus .and A tllmtlrii differed .among uus. A f/arNS inddmce inl;rustd with ttmptr.ltuce .and d~eutd with latitude. Less thin 1" of lsol..18 were A I'IDmiUl or A JMIroaititwS. A f/arNS isolates wtte usigntcf to eithn Ihe S or L slniN on the b.lsis of K1...

A nonpathogenic strain of Citrobacter sedlakii which expresses the Escherichia coli O157 antigen is described. The discovery of this strain emphasizes the necessity of additional biochemical and/or toxigenicity testing when isolates react with E. coli O157 latex reagents.

A workman who had heavy tissue congestion in the upper part of the left arm and fractures of the left humerus and ribs due to accident was admitted to the Toyama Rosai Hospital on 24 September 1964. (The work of the patient involved no particular contact with animals.) Amputation of the left arm was carried out on the day of admission. An onset of symptomis indicating gas gangrene al)peared on ...

Three strains were chosen in this experiment. Strain 10-19 invariably developed a severe disease and strain 8-14 a mild case. Strain PW-8 was chosen because of its high toxigenicity in the fluid media, but it caused very slight clinical symptoms by conjunctival method. Exp. 1. Bacterial suspensions of three strains were prepared by washing twice fresh cultures from serum agar plates. To test th...