IAC Express is a weekly periodical of the Immunization Action Coalition that features important immunization developments, such as the latest vaccine recommendations and licensures, important journal articles, practical vaccination resources, conference announcements, and more.
CURRENT ISSUE: December 13
A 17-year-old received two doses of Twinrix, separated by one month. The second dose was six months ago and she is now 18 years old. Can she receive the third dose of Twinrix to complete the series?
Yes. This was a vaccine administration error since Twinrix, a combination hepatitis A/hepatitis B vaccine, is not licensed for people younger than 18. However, the hepatitis A and hepatitis B components can be counted as valid doses. The third dose of the Twinrix series should be given at least five months after the second dose.
Ask the Experts Special Edition: November 17, 2017
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