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 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 1995 and 1994-1995 *
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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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