What should be done if a traveler cannot receive hepatitis A vaccine?
Travelers who are allergic to a vaccine component or who elect not to receive vaccine should receive a single dose of immune globulin (0.02 mL/kg), which provides effective protection against hepatitis A virus infection for up to 3 months. Travelers whose travel period exceeds 2 months should be administered immune globulin at 0.06 mL/kg; administration must be repeated if the travel period exceeds 5 months.