The client is a chronic carrier of infection. To prevent the spread of the infection to other clients or health care providers, the nurse emphasizes interventions that do which of the following? 1....

The client is a chronic carrier of infection. To prevent the spread of the infection to other clients or health care providers, the nurse emphasizes interventions that do which of the following?

1. Eliminate the reservoir.

 2. Block the portal of exit from the reservoir.

 3. Block the portal of entry into the host.

 4. Decrease the susceptibility of the host.