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Quarterly Immunization Table
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 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 nationally notifiable diseases preventable by routine
childhood vaccination -- United States, April-June 1997 and January-June 1996 and
1997 *
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No. cases among
Total cases children aged <5 years +
No. cases January-June January-June
April-June ------------ ------------------------
Disease 1997 1996 1997 1996 1997
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Congenital rubella syndrome 0 1 2 1 2
Diphtheria 2 1 5 0 1
Haemophilus influenzae & 318 601 583 145 125
Hepatitis B @ 2267 4673 4252 29 133
Measles 52 270 71 62 27
Mumps 190 366 323 75 68
Pertussis 1268 1891 2452 845 1020
Poliomyelitis paralytic ** 0 1 0 1 0
Rubella 55 127 64 11 8
Tetanus 12 14 21 0 0
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* Data for 1996 are final. Data for 1997 are provisional.
+ For 1996 and 1997, age data were available for >=96% of cases.
& Invasive disease; H. influenzae serotype is not routinely reported to the National Notifiable
Diseases Surveillance System. Of 125 cases among children aged <5 years, serotype was
reported for 64 cases, and of those, 25 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.
** Five cases with onset in 1996 have been confirmed; one case with onset in 1997 is under
investigation.
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