A confirmed case of avian influenza at a farm in the Steyr district of Upper Austria has prompted swift action from local authorities, including the culling of the affected poultry and the establishment of strict surveillance zones. The outbreak,detected near the border wiht Lower Austria,raises concerns about potential spread to other farms and the wider poultry industry during this peak migration season for wild birds. Officials are urging vigilance and adherence to biosecurity measures as they work to contain the highly contagious virus and mitigate economic impacts for farmers. The country has now been designated as an “area with increased risk” due to the outbreak.
Authorities in Austria have implemented heightened measures to prevent the spread of avian influenza following a confirmed outbreak on a farm in the Steyr district of Upper Austria. The case, located near the border with Lower Austria, prompted the establishment of surveillance and protection zones, impacting hundreds of poultry farms.
The affected farm is subject to a cull of its poultry population, according to the Ministry of Health, as officials work to contain the virus. A three-kilometer (approximately 1.9 miles) protection zone and a ten-kilometer (approximately 6.2 miles) surveillance zone have been established around the affected property, extending into the Amstetten district.
Veterinary Inspections Underway
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Approximately 350 poultry farms fall within the designated zones. Veterinary officials are now conducting inspections of these facilities. Every farm within the protection zone will be inspected, while those in the surveillance zone will undergo random checks, focusing on larger operations or those deemed to be at higher risk, according to Landesveterinärdirektorin Christina Riedl.
Any farms intending to transport live animals must now apply for permission from the Amstetten district administration and await approval.
The entire country of Austria was designated as an “area with increased risk” as of November 3, prompting officials to urge the public to avoid contact with wild birds and their droppings. These measures are intended to prevent further spread of the virus.
Further Outbreaks Possible
Officials warn that additional outbreaks of avian influenza are possible. “Germany has seen a massive spread of bird flu, with no state without an outbreak,” Riedl said. “Last year, seven farms in the Amstetten district were affected. Realistically, more farms will be affected. We hope, however, that further spread does not occur.”
The virus typically appears in waves around twice a year, “always in the colder season when migratory birds are on the move,” Riedl explained. These birds carry the virus and die, increasing the viral load in the region. Free-range poultry are particularly vulnerable, as they are more difficult to protect from infection.
For those who keep small numbers of chickens privately, Riedl recommends keeping the birds confined to a coop, providing food and water under cover, and preventing contact with other animals at watering holes, such as ducks or geese.
21-Day Protection Zone Established
A protection zone and a surveillance zone, lasting at least 21 and 30 days respectively, have been established around the affected farm in the Steyr district to quickly identify any potential cases on other farms and prevent further transmission, authorities said. This includes mandatory housing of poultry, restricted access to barns, and disinfection measures.
