Gary Euler, is an epidemiologist at the Centers for Disease Control and Prevention (CDC) in Atlanta, Georgia.  Dr. Euler worked for 10 years on hepatitis B vaccination program promotion and evaluation, primarily concentrating on the prevention of hepatitis B and liver cancer among Asian Americans and Pacific Islanders. In 1997, he helped co-found the National Task Force on Hepatitis B Immunization, Focus on Asians and Pacific Islanders.  Dr. Euler was instrumental in design and implementation of hepatitis B vaccination interventions and coverage assessments in 15 U.S. cities among Asian and Pacific Islander children.  Currently Dr. Euler is conducting influenza vaccine effectiveness and vaccine coverage research at the CDC.