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Volume 15, Number 1—January 2009
Research

Human Infection with Highly Pathogenic Avian Influenza Virus (H5N1) in Northern Vietnam, 2004–2005

Nguyen Duc Hien, Nguyen Hong Ha, Nguyen Tuong Van, Nguyen Thi Minh Ha, Trinh Thi Minh Lien, Nguyen Quoc Thai, Van Dinh Trang, Takuro ShimboComments to Author , Yoshimitsu Takahashi, Yasuyuki Kato, Akihiko Kawana, Samu Akita, and Koichiro Kudo
Author affiliations: National Institute of Infectious and Tropical Diseases, Hanoi, Vietnam (N.D. Hien, N.H. Ha, N.T. Van, N.T.M. Ha, T.T.M. Lien, N.Q. Thai, V.D. Trang); International Medical Center of Japan, Tokyo, Japan (T. Shimbo, Y. Takahashi, Y. Kato, A. Kawana, S. Akita, K. Kudo)

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Table 3

Comparison of studies of influenza A virus (H5N1)–infected patients*

Author (reference)
Year
Patient age, y, mean ± SD
Leukocyte count, median, × 103/μL (IQR)
Hospitalization after disease onset, median, d (IQR)
Outcome
No. alive
No. died
Present study 2009 35.1 ± 14.4 7.2 (3.9–11.3) 6 (3.5–8) 22 7
Yuen at al (8). † 1998 17.6 ± 20.4 5.6 (2.47–10.7) 3 (2–4) 5 5
Tran et al. (4) 2004 13.7 ± 6.4 2.1 (1.9–2.8) 6 (5–7) 2 8
Chotpitayasunondh et al. (9) 2005 22.0 ± 21.4 4.43 (2.75–5.64) NR 4 8
Oner et al. (19) 2006 10.1 ± 4.0 3.8 (1.8–5.75) 6 (4–7) 4 4
Kandun et al. (20) 2007 15.4 ± 14.9 3.59 (2.605–6.3) 7 (5–7) 4 4
Buchy et al. (21) 2007 16.0 ± 9.9 4.2 (3.6–4.7) 6 (5–7) 0 6

*IQR, interquartile range; NR, not reported.
†Outcomes of 2 patients were not reported.

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