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Smallpox Vaccination Program Report
Status and Adverse Events
Preliminary data about health events following smallpox vaccination are
provided to the Vaccine Adverse Event Reporting System (VAERS). These data
include cases currently under investigation. Numbers and classification of
the adverse events may change as more information becomes available. A more
detailed description will be provided in periodic
Adverse events reported following smallpox vaccination may be
coincidental illnesses that would have occurred anyway or may be caused by
the vaccine. The Centers for Disease Control and Prevention (CDC) and local
health officials will make every effort to follow up reported adverse events
and will report findings of investigations in the MMWR.
Adverse events can affect persons who were vaccinated as well as persons
who have come into close contact with them.
CDC has made changes to the format of the safety assessment tables on
this website in order to provide more detail about adverse event reports and
make it easier to compare the tables to more detailed reports provided
periodically in the MMWR.
For more information, visit this CDC
smallpox web site.
This page last updated March 7, 2005
United States Department of Health and Human Services
Centers for Disease Control and Prevention
Office of Communication
Division of Media Relations