President Clinton submitted the Comprehensive Childhood Immunization I
nitiative Act to Congress in April 1993. The objective of the legislat
ion is to protect all children in the United States by their second bi
rthday against nine vaccine-preventable infectious diseases. As origin
ally introduced in the Congress the initiative called for (a) Federal
purchase and distribution of recommended childhood vaccines for all ch
ildren, (b) improving the public health capacity to deliver vaccine, (
c) establishing a State-based national immunization information and tr
acking system, and (d) expanding immunization education and mobilizati
on efforts directed to health care providers and parents. The authors
review the progress and current status of the initiative, updating a p
revious progress report. The President's legislative proposal, modifie
d by Congress, was enacted August 10, 1993. Several key provisions of
the original legislation, deferred by Congress, may be incorporated in
subsequent legislation or implemented through existing authorities. T
herefore, the evolving framework for the initiative derives not from a
single legislative mandate, but expands current immunization program
activities and adds important new and complementary activities. As men
tioned in the original title of the legislation, this is a ''comprehen
sive'' effort to address the problem of under-immunization in U.S. pre
school children.