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
final data for the previous year and highlights the number of
reported cases
in 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 nationally notifiable diseases preventable by routine
childhood vaccination --United States, October-December 1997 and January-
December 1996 and 1997 *
=====================================================================================================
No. cases among
No. cases, Total cases children aged <5 years +
October- January-December January-December
December -------------------- ------------------------
Disease 1997 1996 1997 1996 1997
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Congenital rubella
syndrome 1 4 6 4 6
Diphtheria 0 2 5 0 1
Haemophilus influenzae & 246 1,170 1,075 273 245
Hepatitis B @ 2,134 10,637 8,902 93 96
Measles 20 549 136 160 54
Mumps 184 751 639 158 127
Pertussis 1,809 7,796 5,729 3,464 2,480
Poliomyelitis, paralytic ** 0 5 1 3 1
Rubella 28 238 161 18 10
Tetanus 14 36 46 0 0
--------------------------------------------------------------------------------------------------
* Data for 1996 are final; data for 1997 are provisional.
+ For 1996 and 1997, data by age were available for >=97% cases.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System. Of 245 cases in children aged <5 years, serotype was reported
for 126; of these, 47 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 1997 has been confirmed; three suspected cases are being
investigated. One suspected case occurred in a child aged <5 years.
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