Hepatitis b adult vaccine Disease Interactions

Hepatitis B vaccine (adult and pediatric) is usually for intramuscular administration. However, it may be administered subcutaneously to persons at risk for hemorrhage following intramuscular injections (e.g., hemophiliacs), although it may result in lower antibody response. Additionally, when other aluminum- absorbed vaccines have been administered subcutaneously, an increased incidence of local reactions including subcutaneous nodules has been observed. Therefore, consider subcutaneous administration only in persons who are at risk of hemorrhage following intramuscular injections.