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Volume 10, Number 7—July 2004

Research

Sporadic Cryptosporidiosis Case-Control Study with Genotyping

Paul R. Hunter*Comments to Author , Sara Hughes†, Sarah Woodhouse†, Qutub Syed†, Neville Q. Verlander‡, Rachel M. Chalmers§, Kenton Morgan¶, Gordon Nichols†, Nick Beeching#, and Keith Osborn**
Author affiliations: *University of East Anglia, Norwich United Kingdom; †Communicable Disease Surveillance Centre – North West, Chester, United Kingdom; ‡Communicable Disease Surveillance Centre, London, United Kingdom; §Singleton Hospital, Swansea, United Kingdom; ¶University of Liverpool, Liverpool, United Kingdom; #Liverpool School of Tropical Medicine, Liverpool, United Kingdom; and; **United Utilities, Warrington, United Kingdom

Main Article

Table 1

Age distribution of controls and case-patients

Age group, y Control
n (%) All cases
n (%) C. hominis
n (%) C. parvum
n (%)
0–4
98 (24.6)
118 (27.7)
23 (20.0)
25 (32.9)
5–9
69 (17.3)
73 (17.1)
17 (14.8)
14 (18.4)
10–14
53 (13.3)
33 (7.7)
7 (6.1)
6 (7.9)
15–19
12 (3.0)
24 (5.6)
7 (6.1)
8 (10.5)
20–24
6 (1.5)
21 (4.9)
10 (8.7)
5 (6.6)
25–29
11 (2.8)
29 (6.8)
11 (9.6)
5 (6.6)
30–34
6 (1.5)
35 (8.2)
14 (12.2)
5 (6.6)
35–39
20 (5.0)
23 (5.4)
10 (8.7)
1 (1.3)
40–44
21 (5.3)
16 (3.8)
1 (0.9)
1 (1.3)
45–49
26 (6.5)
9 (2.1)
2 (1.7)
1 (1.3)
50–54
15 (3.8)
9 (2.1)
0
0
55–59
17 (4.3)
11 (2.6)
4 (3.5)
4 (5.3)
60–64
13 (3.3)
5 (1.2)
4 (3.5)
0 (0.0)
65–69
12 (3.0)
10 (2.3)
1 (0.9)
0 (0.0)
70–74
9 (2.3)
4 (0.9)
2 (1.7)
1 (1.3)
75–79
7 (1.8)
1 (0.2)
0
0
80–84
1 (0.3)
2 (0.5)
1 (0.9)
0
85–90 2 (0.5) 3 (0.7) 1 (0.9) 0

Main Article

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