Which statement accurately defines bactericidal and virucidal and gives an example?

Which statement accurately defines bactericidal and virucidal and gives an example?

• A. Bactericidal kills viruses; virucidal kills bacteria; many EPA-registered disinfectants are both.
• B. Bactericidal kills bacteria; virucidal kills viruses; many EPA-registered disinfectants are both.
• C. They are interchangeable terms.
• D. Only disinfectants labeled as virucidal can be used on nails.

Answer: (B)

The key idea is that disinfection labels tell you what kinds of microorganisms the product can kill. Bactericidal means it kills bacteria, while virucidal means it kills viruses. Many EPA-registered disinfectants are labeled as both bactericidal and virucidal, showing they have demonstrated activity against both types of microorganisms. This is why that statement is best: it correctly defines each term and recognizes that products can be effective against both bacteria and viruses. It's not accurate to flip the definitions (bactericidal killing viruses and virucidal killing bacteria), to claim the terms are interchangeable, or to say only virucidal products can be used on nails. In practice, choosing an EPA-registered disinfectant labeled as both bactericidal and virucidal provides broad protection for nail surfaces and implements.

The key idea is that disinfection labels tell you what kinds of microorganisms the product can kill. Bactericidal means it kills bacteria, while virucidal means it kills viruses. Many EPA-registered disinfectants are labeled as both bactericidal and virucidal, showing they have demonstrated activity against both types of microorganisms. This is why that statement is best: it correctly defines each term and recognizes that products can be effective against both bacteria and viruses.

It's not accurate to flip the definitions (bactericidal killing viruses and virucidal killing bacteria), to claim the terms are interchangeable, or to say only virucidal products can be used on nails. In practice, choosing an EPA-registered disinfectant labeled as both bactericidal and virucidal provides broad protection for nail surfaces and implements.