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 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 nationally notifiable diseases preventable by routine
childhood vaccination -- United States, January-March 1997 and 1996-1997 *
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No. cases among
No. cases, Total cases children aged <5 years +
January- January-March January-March
March --------------- ------------------------
Disease 1997 1996 1997 1996 1997
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Congenital rubella
syndrome 2 1 2 1 2
Diphtheria 1 1 1 0 0
Haemophilus influenzae & 256 301 256 71 53
Hepatitis B @ 1865 2111 1865 14 59
Measles 19 67 19 9 12
Mumps 134 152 134 26 24
Pertussis 1100 662 1100 296 444
Poliomyelitis, paralytic ** 0 3 0 2 0
Rubella 8 39 8 2 4
Tetanus 9 3 9 0 0
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* Data for 1996 and 1997 are provisional.
+ For 1996 and 1997, age data were available for >=95% of cases, except for 1996 age data for
measles, which were available for 91% of cases.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System. Of 53 cases among children aged <5 years, serotype was
reported for 26 cases, and of those, 11 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 suspected cases with onset in 1996 and one with onset in 1995 remain under
investigation.
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