AMBIRIX is a vaccine designed to provide immunization against hepatitis A and hepatitis B infections. It is typically administered through an injection and is used to stimulate the body's immune response to these viruses, offering protection by enabling the body to recognize and fight the viruses more effectively if exposed in the future. The vaccine is generally recommended for individuals who are at increased risk of exposure to these viruses, including travelers to certain countries where hepatitis A and B are prevalent, people with certain medical conditions, and those who might be exposed through their work or lifestyle. AMBIRIX is part of a comprehensive approach to prevent the spread of hepatitis A and B, two liver infections that can cause mild to severe illness.