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Volume 14, Number 1—January 2008
THEME ISSUE
International Polar Year

Research

Epidemiology of Haemophilus influenzae Serotype a, North American Arctic, 2000–2005

Michael G. Bruce*Comments to Author , Shelley L. Deeks†, Tammy Zulz*, Christine Navarro†, Carolina Palacios‡, Cheryl Case§, Colleen Hemsley¶, Tom Hennessy*, Andre Corriveau§, Bryce Larke¶, Isaac Sobel‡, Marguerite Lovgren#, Carolynn DeByle*, Raymond Tsang**, Alan J. Parkinson*, and the International Circumpolar Surveillance Hia Working Group1
Author affiliations: *Centers for Disease Control and Prevention, Anchorage, Alaska, USA; †Public Health Agency of Canada, Ottawa, Ontario, Canada; ‡Nunavut Department of Health, Iqaluit, Nunavut, Canada; §Northwest Territories Department of Health and Social Services, Yellowknife, Northwest Territories, Canada; ¶Yukon Health and Social Services, Whitehorse, Yukon, Canada; #National Centre for Streptococcus, Edmonton, Alberta, Canada; **National Microbiology Laboratory, Winnipeg, Manitoba, Canada;

Main Article

Table 1

Characteristics of Alaskan and northern Canadian persons with invasive Haemophilus influenzae type a disease, 2000–2005

Characteristic Alaska (n = 11) Northern Canada (n = 31) Total (n = 42)
Median age (range) 10 mo (4 mo–73 y) 1.2 y (3 mo–31 y) 1.1 y (3 mo–73 y)
Male sex, no. (%) 7 (64) 19 (61) 26 (62)
Indigenous, no. (%) 8 (73) 27 (100)* 35 (92)
Age appropriately vaccinated for Hib, y (% vaccinated) 7 (88)† 21 (88)‡ 28 (88)
Hospitalization, no. (%)‡ 10 (91) 25 (96)§ 35 (97)
Deaths, no. (%)¶ 1 (9) 1 (4) 2 (5)

*Ethnicity data missing from 4 cases; denominator = 27.
†Vaccine history missing from 3 cases; denominator = 8.
‡Vaccine history missing from 7 cases; denominator = 24.
§Hospitalization data missing from 5 cases; denominator = 26.
¶Death data missing from 5 cases; denominator = 26.

Main Article

1International Circumpolar Surveillance Hia Working Group: Michael G. Bruce, Dana Bruden, Carolynn DeByle, Marcella Harker-Jones, Tom Hennessy, Kim Boyd Hummel, Debby Hurlburt, Alan J. Parkinson, Debby Parks, Helen Peters, Alisa Reasonover, Tammy Zulz, (CDC); Shelley L. Deeks, Christine Navarro, Raymond Tsang (Public Health Agency of Canada); Carolina Palacios, Isaac Sobel (Nunavut Department of Health); Cheryl Case, Andre Corriveau (Northwest Territories Department of Health and Social Services); Colleen Hemsley, Bryce Larke (Yukon Health and Social Services); Marguerite Lovgren, Gregory Tyrell (National Centre for Streptococcus, Edmonton); Louise Jette, Louise Ringuette (Quebec Public Health Laboratory)

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