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Quarterly Immunization Table

To track progess 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 <5 years who are the primary focus of CII. Data in the table are reported through the National Electronic Telecommunications System for Surveillance (NETSS).
Table_1
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Number of reported cases of nationally notifiable diseases preventable by routine childhood vaccination
 -- United States, July-September 1997 and January- September 1996 and 1997 *
===============================================================================================================
                                                                                No. cases among children
                                No. cases      Total cases January-September  aged <5 years + January-September
                             July-September    -----------------------------  ---------------------------------
Disease                              1997      1996                     1997       1996      1997
---------------------------------------------------------------------------------------------------------------
Congenital rubella syndrome             1         1                        4          1         4
Diphtheria                              0         1                        5          0         1
Haemophilus influenzae &              207       800                      813        192       183
Hepatitis B @                        1996      7222                     6379         48       150
Measles                                38       465                      111        121        46
Mumps                                  99       534                      435        114        95
Pertussis                            1221      4202                     3813       2013      1717
Poliomyelitis,paralytic **              0         2                        0          1         0
Rubella                                53       216                      141         15        12
Tetanus                                 9        24                       32          0         0
---------------------------------------------------------------------------------------------------------------
*  Data for 1996 are final; data for 1997 are provisional.
+  For 1996 and 1997, age data were available for >=97% cases.
&  Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable Diseases
   Surveillance System. Of 183 cases among children aged <5 years, serotype was reported for 97 cases,
   and of those, 39 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.
** Five suspected cases with onset in 1996 have been confirmed; all were vaccine-associated. Two cases
   with onset in 1997 are under investigation.
===============================================================================================================

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Morbidity and Mortality Weekly Report
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