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Volume 17, Number 9—September 2011

Research

Increasing Incidence of Invasive Haemophilus influenzae Disease in Adults, Utah, USA

Matthew P. RubachComments to Author , Jeffrey M. Bender, Susan Mottice, Kimberly Hanson, Hsin Yi Cindy Weng, Kent Korgenski, Judy A. Daly, and Andrew T. Pavia
Author affiliations: Author affiliations: University of Utah, Salt Lake City, Utah, USA (M.P. Rubach, K. Hanson, H.Y.C. Weng, A.T. Pavia); Kaiser Permanente, Los Angeles, California, USA (J.M. Bender); Utah State Department of Health, Salt Lake City (S. Mottice); Intermountain Healthcare, Salt Lake City (K. Korgenski, J.A. Daly)

Main Article

Table

Characteristics, by serotype, of 121 cases of invasive Haemophilus influenzae in adult patients, Utah, USA, 1998–2008

Characteristic No. (%) samples
Type a, n = 15 Type b, n = 9 Type c, n = 1 Type d, n = 3 Type e, n = 5 Type f, n = 25 Not typeable, n = 43 Not typed, n = 20 Total
Patient age, y
18–34 3 (20.0) 0 1 0 0 1 (4.0) 9 (20.9) 3 (15.0) 17 (14.0)
35–49 3 (20.0) 3 (33.3) 0 0 0 1 (4.0) 5 (11.6) 1 (5.0) 13 (10.7)
50–64 4 (26.7) 2 (22.2) 0 1 1 6 (24.0) 12 (27.9) 3 (15.0) 29 (23.9)
>65
5 (33.3)
4 (44.4)
0
2
4
17 (68.0)
17 (39.5)
13 (65.0)
62 (51.2)
Patient sex, F
8 (53.3)
4 (44.4)
1
0
3
17 (68.0)
21 (48.8)
10 (50.0)
64 (52.8)
Sample source
Cerebrospinal fluid 1 (6.7) 4 (44.4) 1 0 0 4 (16.0) 5 (11.6) 0 15 (12.3)
Blood 14 (93.3) 5 (55.6) 0 3 5 21 (84.0) 35 (81.3) 18 (90.0) 101 (83.5)
Other
0
0
0
0
0
0
3 (6.9)
2 (10.0)
5 (4.1)
Patient death 4 (26.7) 2 (22.2) 0 1 0 4 (16.0) 10 (23.2) 6 (30.0) 27 (22.3)

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