Clara has spent the past year working in various hospitals for several nursing pools. She knows that a recently admitted patient Marc has tested HIV positive at another hospital.When Clara spoke with Marc, he denied having tested HIV positive and refuses to be tested again.

The manager encourages staff to protect themselves, but Clara has only seen a few staff members wear gloves when cleaning Marc after he's been bowel incontinent.

Should she inform coworkers that Marc has tested HIV positive at another hospital?