What practice helps build a patient's immunity to hepatitis B?

• A. Hand hygiene
• B. Isolation
• C. Vaccination not applicable
• D. Vaccination

Answer: (D)

Vaccination is the way to build immunity to hepatitis B. The hepatitis B vaccine introduces a harmless piece of the virus to the immune system, prompting it to produce specific antibodies. Those antibodies provide protection against future infection if exposed. Hand hygiene and isolation help reduce the risk of transmission but do not create individual immunity. The option that suggests vaccination isn’t applicable isn’t correct because vaccines are a proven method to develop long-term protection. In dialysis patients, vaccines are given to those who are susceptible, and antibody levels are sometimes checked afterward to ensure protection, with additional doses if needed.