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Differentiation of porcine circovirus I and 2 in formalin-fixed, paraffin-embedded tissues from pigs with postweaning multisystemic wasting syndrome by in-situ hybridisation. Research in

A phage typing set composed of 32 phages is described for differentiating Escherichia coli. Eight hundred sixty-six isolates from cases of bovine mastitis were used in this effort. Of these cultures 829, or 96%, were characterized successfully, and 178 phage types were observed. Thirty-seven isolates were not typable.

A phage typing set composed of 13 phages is described for characterizing Staphylococcus epidermidis. Isolates (372) from cases of bovine mastitis were used in this study. Of these, 350 or 94% were successfully delineated, and 63 phage types were observed. Twenty two cultures were not typeable.

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