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Volume 6, Number 6—December 2000

Research

Risk Factors for Otitis Media and Carriage of Multiple Strains of Haemophilus influenzae and Streptococcus pneumoniae

Jennifer St. Sauver*, Carl F. Marrs*, Betsy Foxman*, Patricia Somsel†, Robbie Madera*, and Janet R. Gilsdorf*Comments to Author 
Author affiliations: *University of Michigan, Ann Arbor, Michigan, USA; †Regional Medical Laboratories Inc, Battle Creek, Michigan, USA

Main Article

Table 1

Genetic patterns of Haemophilus influenzae in children attending two day-care centers, Michigan

Child ID No. Week 1 Week 2 Week 3 Week 4 No. of patternsa
Day-care center 1
20 3 -- 0 -- 1
21 6 -- Didn't cutb 9,10,11 4
22 1,2,12 1,2,13,14 15,16 8 8
23 17,18 4,19 18 4,18, 19,20, 21 6
24 -- 5 5 5,22 2
25 0 0 -- 0 0
26 6,23 4,7 4,24, 25,26 4,26, 27 8
27 -- 7,28,29 28 28 3
28 1,30 -- 31 1 3
29 0 0 32 0 1
30 -- 2 -- -- 1
31 39 0 40,41 5,42, 43,44 7
32 7,45 3,6,45 6,7,46, 47 48 7
33 1 -- -- -- 1
34 0 7 7,33 Didn't cutb 2
35 49,50 49,51 51,52, 53 53 5
37 54,55 54,55 54,56 54 3
38 7,34,35 0 8 0 4
39 36 0 0 37,38 3
40 7 4,6 6 6 3
Day-care center 2
51 3 3 6 6 2
53 11 11 11 11,12 2
54 0 0 31 0 1
55 -- 2,3 0 2,3 2
56 Didn't cutb 13,14 -- -- 2
57 7,8 7 0 0 2
58 2,15 13 -- -- 3
59 16,17 -- 16,18 16 3
60 -- -- 9 9,10 2
61 5,19 2,5,19, 20 2,5 2,5 4
62 2 2,27 2,27 2 2
63 -- 1,28 28,29 28,29 3
64 -- 1,21 0 21 2
65 4,30 4,30 30 4,30 2
66 0 0 2 0 1
67 22 23 23,24 23,24 3
68 25 -- -- 25,26 2
69 4 -- 1,4 0 2

a 0 indicates that no H. influenzae were isolated. -- indicates that no culture was collected from the child at that time.
b Isolate did not digest with SmaI.

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