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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Bacteria not affected by streptogramins is ?
assistant
The correct answer is  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.