December 12, 1997
Recently, there have been several cases of influenza in humans, apparently caused by an H5N1 influenza virus.
This type of virus is more commonly associated with poultry and other species of birds. Some officers who, during the course of their work, deal with birds or visit places where birds are kept are concerned that they may become infected.
Avian influenza viruses can infect a wide range of birds, but during this investigation so far the H5N1 virus has only been isolated from domestic chickens.
Officers may be exposed to a wide range of birds in their work, and the majority of these birds will not be excreting virus. Therefore, the risk of becoming infected is low.
No clinical cases of disease associated with H5N1 infection have been reported in workers contacting birds regularly, such as market workers or poultry farmers. In three of the four human cases of H5N1 infection there is no evidence of direct contact with poultry or other birds.
At present, it is not known how the human cases became infected with the virus, and therefore these guidelines are based on normal hygiene practices and the predicted behaviour of the virus.
Guidelines
1. Where possible, minimise direct contact with birds.
2. If you must contact birds, wash your hands thoroughly with soap and warm water after handling them. Disposable plastic or rubber gloves may be worn when handling birds or cleaning and handling cages. After the gloves are removed wash hands thoroughly with soap and water.
3. When visiting poultry farms wear additional protective clothing (such as overalls or gowns) which should be removed on leaving the farm.
4. Staff handling bird carcasses or collecting samples directly from birds are advised to wear paper face masks and appropriate protective clothing.
5. Avoid working for prolonged periods in confined spaces with birds, especially if ventilation is poor.
6. If you develop a fever or respiratory disease contact your doctor immediately for appropriate treatment and investigation. Please inform your doctor of the history of exposure to birds.
7. If you see unusually high numbers of sick or dead birds contact AFD's animal health staff (2455 1125 or 2461 8791) so that the problem can be investigated properly.
Agriculture and Fisheries Department
Department of Health