Virucidal action is described as...

• A. Inactivates viruses.
• B. Destroying bacteria.
• C. Destroying or inactivating viruses.
• D. Inhibiting viral replication only.

Answer: (C)

Virucidal action means substances or processes that render viruses noninfectious by either destroying the virus particle or irreversibly inactivating it, so the virus can no longer infect a host. This goes beyond just stopping replication; virucidal means the virus is inactivated to a point where it cannot cause infection. That’s why the best description is destroy­ing or inactivating viruses. The other choices either target bacteria, describe antiviral activity (which halts replication but may not inactivate the virus), or only mention inactivation without the broader implication of eliminating infectivity.