Eagle effect is seen in
Some microbes demonstrate a curious response to b-lactam antibiotics known as Eagle-effect. Eagle-effect positive enterococci exhibit their greatest bactericidal response to penicillins at a concentration just above the MIC of the antibiotic, as concentration of P is increased above this value,bactericidal effect against enterococci is decreased. It is their unusual resistance to antibiotics - single outstanding characteristics.
Staphylococcus aureus
Enterococcus faecalis
Pseudomonas aeruginosa
Streptococcus pyogenes
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