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Volume 11, Number 2—February 2005
Research

Lack of H5N1 Avian Influenza Transmission to Hospital Employees, Hanoi, 2004

Nguyen Thanh Liem*, Wilina Lim†, and World Health Organization International Avian Influenza Investigation TeamVietnam
Author affiliations: *National Pediatric Hospital, Hanoi, Vietnam; †Department of Health, Hong Kong, Special Administrative Region, China

Main Article

Table 1

Demographic and exposure characteristics of study participants

Characteristic
n (%)*
Age group (y)
<30 20 (24.1)
30–39 26 (31.3)
40–49 26 (31.3)
>49 11 (13.3)
Male sex 30 (36.1)
Residence in Hanoi City 81 (97.6)
Department
ICU† 37 (45.1)
Infectious diseases 30 (36.6)
Laboratory 8 (9.8)
Radiology 6 (7.3)
Hematology 1 (1.2)
Years smoked
None 64 (78.1)
<10 6 (7.3)
10–30 12 (14.6)
Chronic medical condition 22 (26.5)
Influenza vaccination in 2004 56 (68.3)
Oseltamivir since Dec 27, 2003 1 (1.2)
No. of H5N1 patients visited
0 (none) 4 (4.9)
1 3 (3.7)
2 31 (37.8)
3 32 (39.0)
4 4 (4.9)
5 (all) 8 (9.8)
Changed bedding
Yes 46 (59.0)
No 32 (41.0)
Touched patients
Yes 75 (96.2)
No 3 (3.9)
Exposure to H5N1 patient(s) who did not wear masks 57 (73.1)

*The no. of study participants (n) for each characteristic ranged from 78 to 83; percentage provided is based on the actual number of participants.
†ICU, intensive care unit.

Main Article

1World Health Organization (WHO) International Avian Influenza Investigation Team, Vietnam: Bach Huy Anh (Hanoi Medical University), Philippe Barboza (Institut de Veille Sanitaire, France), Niranjan Bhat (Centers for Disease Control and Prevention, USA [CDC]), Arnold Bosman (EPIET, National Institute for Public Health and the Environment, Netherlands), Sofia Boqvist (Smittskyddsinstitutet, Sweden), Rick Brown (Asian Development Bank), Pascale Brudon (WHO), Philippe Calain (WHO), Maria Cheng (WHO), Aaron Curns (CDC), Valerie Delpech (Health Protection Agency, UK), Robert Dietz (WHO), Nguyen Cong Doan (CDC), United States), Rodger Doran (WHO), Mirna Du Ry van Beest Holle (European Programme for Intervention Epidemiology Training, EPIET), Joel Francart, Keiji Fukuda (CDC), Amy Wolkin (CDC), Tom Grein (WHO), Patrice Gautier (Vetérinaires sans frontières, Vietnam), Futoshi Hasebe (Asian Development Bank), Peter Horby (WHO), Shigeyuki Itamura (National Institute for Infectious Diseases, Japan), Veronique Jestin (OIE), Donna Mak (Centre for International Health, Australia), Noel Miranda (SERVAC, Philippines), Hitoshi Oshitani (WHO), Takehiko Saito (National Institute for Infectious Diseases, Japan), Taronna Maines (CDC), Reiko Saito (Nigata University, Japan), James Mark Simmerman (CDC), Terry Tumpey (CDC), Timothy Uyeki (CDC).

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