What is disinfection?

What is disinfection?

• A. All microorganisms are destroyed.
• B. Most but not all pathogens are destroyed.
• C. Viruses only are killed.
• D. Bacteria are not affected.

Answer: (B)

Disinfection aims to reduce or eliminate disease-causing organisms on inanimate surfaces to lower infection risk. It’s effective against many bacteria, viruses, and fungi, but it doesn’t guarantee total sterility—some organisms, like spores or certain hardy viruses, can survive, and some materials or biofilms may shield microbes. So the typical outcome is that most pathogens are destroyed, not all. This is different from sterilization, which seeks to kill every microorganism, including spores. In practice, disinfection is used on surfaces and equipment with agents like bleach or alcohol to lower transmission risk.

Disinfection aims to reduce or eliminate disease-causing organisms on inanimate surfaces to lower infection risk. It’s effective against many bacteria, viruses, and fungi, but it doesn’t guarantee total sterility—some organisms, like spores or certain hardy viruses, can survive, and some materials or biofilms may shield microbes. So the typical outcome is that most pathogens are destroyed, not all. This is different from sterilization, which seeks to kill every microorganism, including spores. In practice, disinfection is used on surfaces and equipment with agents like bleach or alcohol to lower transmission risk.