The FDA has licensed a new DTaP-IPV vaccine manufactured by Sanofi Pasteur to be used as the booster dose at 4-6 years of age. The first such vaccine, Kinrix, was licensed in 2008. It is approved by the CDC as part of the childhood vaccine schedule. As with Kinrix, it should be used only if the child received the same brand of DTaP vaccine earlier, in this case, either Daptacel or Pentacel.