Answer the following question given this paragraph: 

an enzyme (viral neuraminidase) that allows new virions to leave their infected cells. Thus, Tamiflu inhibits the spread of virus from infected to uninfected cells. Other antiviral drugs, such as Ribavirin, have been used to treat a variety of viral infections, although its mechanism of action against certain viruses remains unclear.


Q: What effect does tamiflu have on viruses and cells?

 Choices:

- destroys all viruses

- reprograms viruses

- enhances cells

- inhibits spread of virus

A:
inhibits spread of virus
