The most common type of flexible spending account, the medical expense FSA (also medical FSA or health FSA), is similar to a health savings account (HSA) or a health reimbursement account (HRA).
While some are still in the clinical trial stage, the following vaccines are currently available: Pediarix is a combination vaccine that combines the immunizations for Diphtheria, Tetanus and acellular Pertussis (DTaP), Hepatitis B and inactivated Polio (IPV), which used to require three separate shots. Pediarix is given to children as a three dose series at 2, 4, and 6 months. So instead of 9 shots for the series to get protection against Diptheria, Tetanus, Pertussis (Whooping Cough), Hepatitis B and Polio, you can now get the same protection for your kids in just 3 shots.
1 Cannot be administered before age 6 weeks or after age 71 months. 2  PEDIARIXÂ®: Combined hepatitis B, diphtheria, tetanus, acellular pertussis (DTaP), and inactivated poliovirus (IPV) vaccine. 3  Cannot be administered before age 6 weeks or after age 7 years. 4  TWINRIXÂ®: Combined Hepatitis A and hepatitis B vaccine.o avoid detection of anti-HBs from hepatitis B immune globulin administered during infancy and to maximize detection of late HBV infection, testing should not be performed before age 9 months nor within 4 weeks of the most recent vaccine dose.