. "Appendix D: Chronology of Important Events Regarding Vaccine Safety." Immunization Safety Review: Vaccines and Autism. Washington, DC: The National Academies Press, 2004.
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Immunization Safety Review: Vaccines and Autism
Year
Vaccine Licensure
Legislation and/or Policy Statements
IOM Reports on Vaccine Safety
1994
Adverse Events Associated with Childhood Vaccines: Evidence Bearing on Causality
DPT and Chronic Nervous System Dysfunction: A New Analysis
1995
Varicella virus vaccine available (Varivax)
1996
DTaP vaccine licensed for first three doses given in infancy (Tripedia and ACEL-IMUNE were previously licensed for only the 4th and 5th doses).
ACIP recommends using IPV for the first 2 polio vaccinations, followed by OPV for remaining doses. Intended to be a transitional schedule for 3–5 years until an all-IPV series is available
ACIP recommends children 12 months to 12 years receive Varicella vaccine
Options for Poliomyelitis Vaccinations in the United States: Workshop Summary
1997
Additional DTaP vaccine (Infanrix) licensed for first 4 doses of 5-part series
ACIP recommends DTaP in place of DTP
Vaccine Safety Forum: Summary of Two Workshops
Risk Communication and Vaccination: Workshop Summary
1998
Additional DTaP vaccine (Certiva) licensed for first 4 doses of 5-part series
ACIP updates MMR recommendation, encouraging use of the combined MMR vaccine
