Hepatitis B vaccine in patients with human immunodeficiency virus infectionHepatitis B is a public health problem in the entire world, mainly among HIV infected people in whom the coinfection change the course, natural history and morbi-mortality of the disease.Because of this, it is imperative to design strategies to prevent hepatitis B infection in HIV patients.Vaccination is the most important tool for prevention, although its efficacy varies according to immunologic and virologic status of the patient.