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Hep A was approved in 1995. The addition to the CDC recommended children's schedule occurred later. It was added to the CDC recommended schedule in phases, starting with 11 Western states in 2000. (Bizarre - never heard of another vaccine being introduced regionally.) I can't currently find the exact history after that, but from my prior…
Hep A was approved in 1995. The addition to the CDC recommended children's schedule occurred later. It was added to the CDC recommended schedule in phases, starting with 11 Western states in 2000. (Bizarre - never heard of another vaccine being introduced regionally.) I can't currently find the exact history after that, but from my prior research, I think two doses were recommended by the CDC in 2004.