MDROs are microorganisms that are resistant to

• A. One or more antimicrobial agents
• B. A single antimicrobial agent
• C. Only antiviral medications
• D. All known antimicrobial agents

Answer: (A)

MDROs are microorganisms that resist one or more antimicrobial drugs, which makes infections harder to treat and can limit the options for therapy. This resistance means standard antibiotics may not work, so treatment often depends on culture and sensitivity results to identify an effective drug or combination. It’s not about antiviral medications, and it doesn’t necessarily mean the organism is resistant to every antimicrobial agent, but it has acquired the ability to withstand at least some drugs. Because of this, infection control and careful antibiotic stewardship are crucial to prevent spread and preserve remaining effective treatments.