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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)

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Table 3

Signs and symptoms among 271 case-patients with indigenous or imported legionellosis, Singapore, 2000–2009*


Fever (with/without chills and rigors)
197 (72.7)
Respiratory
Cough (productive or nonproductive) 211 (77.9)
Shortness of breath 88 (32.5)
Chest pain and discomfort 36 (13.3)
Runny nose 4 (1.5)
Rhinorrhea 1 (0.4)
Bronchitis 2 (0.7)
Sore throat
7 (2.6)
Gastrointestinal
Nausea/vomiting 32 (11.8)
Abdominal/epigastric pain 13 (4.8)
Diarrhea
8 (3.0)
Neurologic
Drowiness/giddiness 13 (4.8)
Headache
9 (3.3)
Other signs or symptoms
Chills 31 (11.4)
Generalized weakness 10 (3.7)
Myalgia 5 (1.9)
Lethargy 8 (3.0)
Loss of appetite 15 (5.5)
Others 22 (8.2)

*Four tourists and 48 foreigners seeking medical treatment in Singapore were excluded.
†Case-patients may have >1 sign or symptom.

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