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Volume 4, Number 2—June 1998

Synopsis

Haemophilus influenzae Invasive Disease in the United States, 1994–1995: Near Disappearance of a Vaccine-Preventable Childhood Disease

Kristine M. Bisgard, Annie Kao, John Leake, Peter M. Strebel, Bradley A. Perkins, and Melinda Wharton
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Table 1

Number of cases and average annual incidence rates of Hi and Hib invasive disease and Hi invasive disease of unknown serotype, by age,a United States, 1994 – 1995

Hi
Hib
Hi serotype unknown
Age group No.b Incid.c No.b Incid.c No.b Incid.c
0-5 mo 310 8.02 85 2.20 138 3.57
6-11 mo 123 3.18 45 1.16 45 0.16
1-4 yr 219 0.69 51 0.16 99 0.31
5-19 yr 179 0.16 23 0.02 108 0.10
20-39 yr 249 0.15 25 0.02 166 0.10
40-59 yr 405 0.33 42 0.03 280 0.23
60-79 yr 715 1.01 51 0.07 539 0.76
80 + yr 361 2.26 18 0.11 152 0.95

aDoes not include 31 cases missing age and 17 patients aged <1 year but missing age in months.
bNumber of cases over the 2-year period.
cIncidence per 100,000 population.

Main Article

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