To track progress toward achieving the goals of the Childhood
Immunization Initiative (CII), CDC publishes quarterly a tabular
summary
Table_1 of the number of cases of nationally notifiable
diseases
preventable by routine childhood vaccination reported during the
previous
quarter and year-to-date (provisional data). In addition, the table
compares
provisional data with data for the previous year and highlights the
number
of reported cases among children aged <5 years, who are the primary focus of CII. Data in the table are reported through the National Electronic Telecommunications System for Surveillance (NETSS).
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, January-March 1998 and January-March 1997 *
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No. cases among
Total cases children aged <5 years +
No. cases January-March January-March
January-March -------------- ------------------------
Disease 1998 1997 1998 1997 1998
--------------------------------------------------------------------------------------------------
Congenital rubella 0 2 0 2 0
syndrome
Diphtheria 0 1 0 0 0
Haemophilus influenzae & 255 283 255 56 55
Hepatitis B @ 1497 1941 1497 52 19
Measles 7 17 7 9 5
Mumps 98 126 98 25 16
Pertussis 807 1101 807 438 332
Poliomyelitis, paralytic ** 0 0 0 0 0
Rubella 98 9 98 3 4
Tetanus 2 8 2 0 1
--------------------------------------------------------------------------------------------------
* Data for 1997 and 1998 are provisional.
+ For 1997 and 1998, age data were available for >=97% cases.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System. Of 55 cases among children aged <5 years, serotype was
reported for 22 cases, and of those, 12 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.
** Two cases with onset in 1997 have been confirmed; two suspected cases are under
investigation, of which one is in a child aged <5 years. One suspected case in a child aged
<5 years with onset in 1998 is also under investigation.
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