Elevated Enterotoxin A Expression and Formation in Staphylococcus aureus and its Association with Prophage Induction.
Staphylococcus aureus strains producing the bacteriophage-encoded staphylococcal enterotoxin A (SEA) were divided into two groups, high- and low-SEA-producing strains, based on the amount of SEA produced. After growth under favorable conditions in batch cultures, ten of the 21 strains tested produced more than 1,000 ng/ml SEA and nine strains produced less than 10 ng/ml SEA; two enterotoxigenic st
