Bacteria not affected by streptogramins is ?: (A) E. coli, (B) Staphylococcuaureus, (C) Legionella, (D) M. pneumoniae
Answer is A. Ans. is 'a' i.e., E. coli Streptogramins are active against gram-positive cocci and organisms responsible for atypical pneumonia (e.g., M. pneumoniae, Legionella spp., and Chlamydia pneumoniae), but largely inactive against gram-negative organisms. They are bactericidal against streptococci and many strains of staphylococci, but bacteriostatic against E. faecium.