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Monthly Immunization Table

To track progress toward achieving the goals of the Childhood Immunization Initiative (CII), CDC publishes monthly a tabular summary Table_1 of the number of cases of all diseases preventable by routine childhood vaccination reported during the previous month 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 derived from CDC's National Notifiable Diseases Surveillance System.
Table_1
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Number of reported cases of diseases preventable by routine childhood vaccination
-- United States, December 1994 and 1993-1994 *
=====================================================================================================
                                                                 No. cases among
                                             Total cases     children aged <5 years +
                                           January -  Dec      January -  December
                            No. cases,    ----------------   -------------------------
Disease                    December 1994     1993     1994         1993    1994
--------------------------------------------------------------------------------------
Congenital rubella
  syndrome (CRS)                  1             5        8            4       7
Diphtheria                        0             0        1            0       1
Haemophilus influenzae &        125          1419     1161          435     313
Hepatitis B @                  1090         13361    11534          141     114
Measles                          21           312      902          119     226
Mumps                           172          1692     1455          284     232
Pertussis                       616          6586     3832         3924    2046
Poliomyelitis, paralytic **       0             3        1            1       1
Rubella                           7           192      218           32      27
Tetanus                           5            48       38            0       0
--------------------------------------------------------------------------------------
 * Data for 1993 are final and for 1994, provisional.
 + For 1993 and 1994, age data were available for >=90% of patients, except for 1993 age
   data for CRS, which were available for 80% of patients.
 & Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
   Diseases Surveillance System. Of 313 cases among children aged <5 years, serotype was reported
   from 37; of those, 29 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.
** One case with onset in 1994 has been confirmed; this case is vaccine-associated. An
   additional six suspected cases are under investigation. In 1993, three of 10 suspected cases
   were confirmed; two of the confirmed cases of 1993 were vaccine-associated and one was imported.
   The imported case occurred in a 2-year-old Nigerian child brought to the United States for care
   of his paralytic illness; no poliovirus was isolated from the child.
=====================================================================================================


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