According to the CDC and most pediatric guidelines, the second dose of the Hepatitis A vaccine is usually given 6 to 12 months after the first. However, if that window is missed, you should simply administer the second dose as soon as possible.
Next Steps
Since it is now May 2026, you are roughly 8 months past the originally scheduled September date. You should schedule an appointment with your pediatrician to receive the second dose.
Once this second shot is administered, the series is considered complete