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Quarterly Immunization Table

To track progress toward achieving the goals of the Childhood Immunization Initiative (CII), CDC publishes quarterly a tabular summary Table_1 of the number of cases of nationally notifiable diseases preventable by routine childhood vaccination reported during the previous quarter and year-to-date (provisional data). In addition, the table compares provisional data with final data for the previous year and highlights the number of reported cases among children aged less than 5 years, who are the primary focus of CII. Data in the table are reported through the National Electronic Telecommunications System for Surveillance (NETSS).

Note: To print large tables and graphs users may have to change their printer settings to landscape and use a small font size.

Number of reported cases of nationally notifiable diseases preventable by routine
childhood vaccination -- United States, September 1996 and 1995-1996 *
                                                                    No. cases among
                                  No. cases     Total cases     children aged <5 years +
                                    July-    January-September     January-September
                                  September  -----------------  ------------------------
Disease                              1996      1995      1996        1995      1996
Congenital rubella syndrome             0         5         1           5         1
Diphtheria                              0         0         1           0         0
Haemophilus influenzae &              190       859       818         214       190
Hepatitis B @                        2401      7378      7195          56        47
Measles                               180       272       440          98        97
Mumps                                 149       637       479         124       100
Pertussis                            2035      3185      3702        1813      1826
Poliomyelitis, paralytic **             0         4         0           4         0
Rubella                                86       106       197           7        14
Tetanus                                 7        22        20           2         0
 * Data for 1995 are final and for 1996 are provisional.
 + For 1995 and 1996, age data were available for >= 93% of cases, except for 1996 age data for
   measles, which were available for 88% of cases.
 & Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
   Diseases Surveillance System. Of 190 cases among children aged <5 years, serotype was
   reported for 42 cases, and of those, 12 were type b, the only serotype of H. influenzae
   preventable by vaccination.
 @ Because most hepatitis B virus infections among infants and children aged <5 years are
   asymptomatic (although likely to become chronic), acute disease surveillance does not
   reflect the incidence of this problem in this age group or the effectiveness of hepatitis B vac-
   cination in infants.
** Three suspected cases with onset in 1996 have been reported to date. Four cases with onset
   in 1995 have been confirmed; these cases were vaccine-associated. An additional six
   suspected cases are under investigation. Eight cases with onset in 1994 were confirmed;
   all were vaccine-associated.

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This page last reviewed 5/2/01