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Volume 17, Number 7—July 2011

Research

Epidemiology and Control of Legionellosis, Singapore

Meng Chon LamComments to Author , Li Wei Ang, Ai Ling Tan, Lyn James, and Kee Tai Goh
Author affiliations: Author affiliations: Ministry of Health, Singapore (M.C. Lam, L.W. Ang, L. James, K.T. Goh); Singapore General Hospital, Singapore (A.L.Tan)

Main Article

Table 1

Classification of reported indigenous and imported legionellosis cases, by year, Singapore, 2000–2009*

Classification 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Total
Confirmed
Pontiac fever 0 4 1 3 1 0 0 0 0 0 9
Legionnaires’ disease
3
15
12
16
4
5
1
0
5
11
72
Presumptive
Pontiac fever 7 12 9 16 4 0 0 4 8 7 67
Legionnaires’ disease
47
15
15
6
4
13
12
8
2
1
123
Total 57 46 37 41 13 18 13 12 15 19 271

*Four tourists and 48 foreigners seeking medical treatment in Singapore were excluded.

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