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Volume 17, Number 6—June 2011

Dispatch

Human Infection with Avian Influenza Virus, Pakistan, 2007

Mukhtiar Zaman, Saadia Ashraf, Nancy A. Dreyer, and Stephen TooveyComments to Author 
Author affiliations: Author affiliations: Khyber Teaching Hospital, Peshawar, Pakistan (M. Zaman, S. Ashraf); Outcome Sciences, Cambridge, Massachusetts, USA (N.A. Dreyer); University College and Royal Free Medical School, London, UK (S. Toovey)

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Table 2

Clinical characteristics for persons with reported cases of influenza (H5N1), Pakistan, 2007

Clinical sign or symptom Diagnostic certainty, no./total (%)
Laboratory confirmed Likely Possible
Respiratory
Abnormal breath sounds (wheezing, rales,
stridor, rhonchi) 1/2 (50) 1/5 (20) 2/5 (40)
Excessive sputum production 0/1 (0) 0/4 (0) 2/6 (33)
Rhinorrhea/nasal discharge 1/2 (50) 1/4 (25) 1/5 (20)
Unexplained respiratory illness with cough,
shortness of breath, or difficulty breathing 1/3 (33) 4/7 (57) 7/9 (78)
Sore throat/pharyngitis 1/1 (100) 0/4 (0) 3/6 (50)
Tachypnea 0/2 (0) 1/5 (20) 1/5 (20)
Cyanosis 0/1 (0) 0/4 (0) 1/3 (33)
Chest pain 2/2 (100) 1/1 (100) 3/5 (60)
Pleural effusion 0 0 1/3 (33)
Hemoptysis 0 0 1/1 (100)
Orthopnea 0 0 0 (0)
Gastrointestinal
Diarrhea 0/1 (0) 1/4 (25) 2/5 (40)
Abdominal pain 0 0 0
Vomiting 0/4 (0) 0/7 (0) 1/9 (11)
Rectal bleeding 0 0 0/1 (0)
Other
Fever 3/4 (75) 7/7 (100) 6/9 (89)
Headache 2/3 (67) 2/4 (50) 2/5 (40)
Body aches 1/1 (100) 0 1/1 (100)
Backache 0 0 1/1 (100)
Pericardial effusion 0 0 0/1 (0)
Nonpitting pedal edema 0 0 0/1 (0)
Fatigue or malaise 0/4 (75) 0/7 (0) 1/9 (11)
Myalgia 0/1 (0) 1/3 (33) 2/4 (50)
Tachycardia 0 1/1 (100) 0

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