To track progress toward achieving the goals of the Childhood
Immunization Initiative (CII), CDC publishes monthly a tabular
summary of the number of cases of all diseases preventable by
routine childhood vaccination reported during the previous month
and year-to-date (provisional data) Table_1. 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 or equal to 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 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 diseases preventable by routine childhood vaccination
-- United States, April 1994 and January-April 1993 and January-April 1994 *
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No. cases among
Total cases children aged <5 years +
No. cases, -------------- ------------------------
Disease April 1994 1993 1994 1993 1994
--------------------------------------------------------------------------------------
Congenital rubella
syndrome (CRS) 0 5 3 3 3
Diphtheria 0 0 0 0 0
Haemophilus influenzae & 106 474 374 161 110
Hepatitis B @ 1103 3935 3682 39 51
Measles 173 103 272 48 66
Mumps 146 580 439 99 52
Pertussis 212 960 991 548 541
Poliomyelitis, paralytic ** -- -- -- -- --
Rubella 48 65 132 12 11
Tetanus 3 8 12 0 1
--------------------------------------------------------------------------------------
* Data for 1993 are final and for 1994, provisional.
+ For 1993 and 1994, age data were available for 84% or more cases, except for 1993 age
data for congenital rubella syndrome (CRS), which were available for 60% of cases.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System.
@ 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.
** No cases of suspected poliomyelitis have been reported in 1994; three cases of suspected
poliomyelitis have been reported in 1993. Four of the five suspected cases with onset in
1992 were confirmed; the confirmed cases were vaccine associated.
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