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 the 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 less than 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, July-September 1998 and January-September 1997-1998*
====================================================================================================
No. cases among
No. cases, Total cases children aged <5 years +
July- January-September January-September
September ----------------- ------------------------
Disease 1998 1997 1998 1997 1998
-------------------------------------------------------------------------------------------------
Congenital rubella syndrome 0 4 3 4 3
Diphtheria 0 4 1 1 0
Haemophilus influenzae& 219 821 791 168 186
Hepatitis B@ 1994 6900 5952 70 58
Measles 23 132 62 49 22
Mumps 119 454 364 93 67
Pertussis 1822 3934 4099 1761 1735
Poliomyelitis, paralytic** 0 2 1 1 1
Rubella 45 140 320 11 24
Tetanus 16 33 32 0 1
-------------------------------------------------------------------------------------------------
* Data for 1997 are final; data for 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 186 cases among children aged <5 years, serotype was
reported for 103 cases, and of those, 39 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 vaccination in infants.
** One case with onset in 1998 and three cases with onset in 1997 have been confirmed. All
were associated with administration of oral poliovirus vaccine. Two suspected cases remain
under investigation: one with onset in 1998 and one with onset in 1997.
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