Volume 17, Number 7—July 2011
Research
Epidemiology and Control of Legionellosis, Singapore
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.