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, March 1994 and 1993-1994 *
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No. cases among
Total cases children aged <5 years +
No. cases, -------------- ------------------------
Disease March 1994 1993 1994 1993 1994
--------------------------------------------------------------------------------------
Congenital rubella
syndrome (CRS) 1 3 3 1 3
Diphtheria 0 0 0 0 0
Haemophilus influenzae & 95 347 269 100 75
Hepatitis B @ 947 2628 2585 19 44
Measles 69 83 105 30 29
Mumps 101 406 290 71 33
Pertussis 217 660 734 298 140
Poliomyelitis, paralytic ** -- -- -- -- --
Rubella 46 45 82 10 6
Tetanus 4 3 7 0 1
--------------------------------------------------------------------------------------
* Data for 1993 are final and for 1994, provisional.
+ For 1993 and 1994, age data were available for 85% or more cases, except for 1993 CRS,
which were available for 33%, and 1994 pertussis, which were available for 82% 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
vaccination 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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