Volume 21, Number 4—April 2015
Research
Highly Pathogenic Avian Influenza A(H5N1) Virus Infection among Workers at Live Bird Markets, Bangladesh, 2009–2010
Sharifa Nasreen
, Salah Uddin Khan, Stephen P. Luby, Emily S. Gurley, Jaynal Abedin, Rashid Uz Zaman, Badrul Munir Sohel, Mustafizur Rahman, Kathy Hancock, Min Z. Levine, Vic Veguilla, David Wang, Crystal Holiday, Eric Gillis, Katharine Sturm-Ramirez, Joseph S. Bresee, Mahmudur Rahman, Timothy M. Uyeki, Jacqueline M. Katz, and Eduardo Azziz-Baumgartner
, Salah Uddin Khan, Stephen P. Luby, Emily S. Gurley, Jaynal Abedin, Rashid Uz Zaman, Badrul Munir Sohel, Mustafizur Rahman, Kathy Hancock, Min Z. Levine, Vic Veguilla, David Wang, Crystal Holiday, Eric Gillis, Katharine Sturm-Ramirez, Joseph S. Bresee, Mahmudur Rahman, Timothy M. Uyeki, Jacqueline M. Katz, and Eduardo Azziz-Baumgartner
Table 2
Characteristics of live bird market workers with evidence of seroconversion against avian influenza A(H5N1) virus, Bangladesh, 2009–2010*
| Characteristic | PW1 | PW2 | PW3 | PW4 | PW5 | PW6 |
|---|---|---|---|---|---|---|
| Personal characteristic | ||||||
| Age, y | 28 | 20 | 22 | 24 | 38 | 19 |
| Smoke tobacco | + | − | + | − | − | + |
| Have chronic medical condition |
− |
− |
− |
− |
− |
− |
| Exposure to poultry or virus | ||||||
| Handle sick poultry | + | + | + | + | + | + |
| Perform tasks with sick poultry | ||||||
| Transport poultry | + | + | + | + | − | + |
| Feed poultry | − | + | + | + | − | + |
| Clean feeding tray | − | − | + | + | − | + |
| Clean water container | − | + | + | + | − | + |
| Medicate sick poultry | − | − | + | − | − | − |
| Separate sick poultry | − | + | + | + | + | + |
| Slaughter poultry | − | + | + | + | − | + |
| Defeather poultry | − | + | − | + | − | + |
| Eviscerate poultry | − | + | − | + | − | + |
| Stuff poultry into bags | + | − | − | + | + | + |
| Clean feces from pen | − | − | + | − | − | + |
| Hand-carry sick poultry or held poultry on lap | + | + | + | + | + | + |
| Carry baskets containing sick poultry on head | − | − | − | − | − | − |
| Eat raw/undercooked poultry or eggs |
− |
+ |
+ |
− |
− |
− |
| Precautions taken when handling sick poultry | ||||||
| Use personal protective equipment† | − | − | − | − | − | − |
| Wash hands at the market after working with the poultry | + | + | − | + | − | − |
| Change clothes upon returning home |
+ |
+ |
+ |
+ |
+ |
+ |
| Presence of influenza-like illness in past 21 d |
− |
− |
− |
− |
− |
− |
| Interval, d, between detection of virus–positive surveillance sample and follow-up collection of serum sample from worker |
49 |
50 |
54 |
56 |
91 |
26 |
| Neutralizing antibody titer, geometric mean‡ | ||||||
| Baseline | 5 | 10 | 5 | 5 | 5 | 5 |
| Follow-up | 40 | 61 | 49 | 40 | 66 | 67 |
*PW, poultry worker; +, characteristic present; −, characteristic not present.
†Apron, gloves, dedicated coveralls, cloth mask, and boots.
‡By microneutralization assay, using influenza A/Bangladesh/3233/2011 (H5N1, clade 2.2) virus.
Page created: March 17, 2015
Page updated: March 17, 2015
Page reviewed: March 17, 2015
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