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
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.