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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, April 1995 and 1994-1995 *
=====================================================================================================
                                                                 No. cases among
                                             Total cases     children aged <5 years +
                                          January - April        January - April
                            No. cases,    ----------------   -------------------------
Disease                     April 1995       1994     1995         1994    1995
--------------------------------------------------------------------------------------
Congenital rubella
  syndrome (CRS)                  1             2        3            2       3
Diphtheria                        0             1        1 @          1       0
Haemophilus influenzae &        125           380      453          104     105
Hepatitis B **                  973          3842     2905           48      25
Measles                          22           347      150           61      54
Mumps                            78           503      257           56      53
Pertussis                       274          1185     1001          600     509
Poliomyelitis, paralytic ++       0             0        0            0       0
Rubella                          10           140       25           10       4
Tetanus                           3            12        8            0       0
--------------------------------------------------------------------------------------
 * Data for 1994 and 1995 are provisional.
 + For 1994 and 1995, age data were available for >=90% or more cases, except for 1995
   age data for measles, which were available for 88% of cases.
 @ This person had onset during October 1994.
 & Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
   Diseases Surveillance System. Of 105 cases among children aged <5 years, serotype was
   reported for 24 cases, and of those, 15 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 July 1994 has been confirmed; this case was 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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