An unlicensed assistive personnel (UAP) who is working on a skilled nursing unit is diagnosed with hepatitis A (HVA). Two weeks later, a nurse complains of headache, nausea, anorexia, arthralgia, and low-grade fever. Which action should the nurse-manager take next?

C Refer the nurse to employee health for serological testing. A Observe the nurse for jaundice and icterus sclera. D Post an employee notice of the outbreak of HVA on the unit. B Review the immunization status of all unit employees.