Avian Influenza Detected in Tienray

Avian influenza has been detected at a broiler farm in Tienray (municipality of Meerlo-Wanssum, Limburg province). To prevent the virus from spreading, approximately 185,000 animals at the location are being culled by the Dutch Food and Consumer Product Safety Authority (NVWA). One other poultry farm is located within the 1-kilometer zone and is being tested and monitored intensively for 14 days. Eleven other poultry farms within the 3-kilometer zone are being screened by the NVWA. The 10-kilometer zone includes 29 poultry farms, part of which lies in German territory; German authorities have been informed.

Transport Ban

A transport ban applies immediately throughout the entire 10-kilometer zone. This means that no poultry or hatching and consumption eggs may be transported from locations with birds in this zone. There is also a ban on the removal of bird manure and used litter, as well as other animals and animal products from companies with birds. These measures are necessary to prevent the spread to other parts of the country. The location of the 10-kilometer zone can be seen on the disease viewer of the Netherlands Enterprise Agency (RVO).

National Measures

Since October 16, 2025, a nationwide housing and shielding obligation applies in the Netherlands. The housing obligation applies to all commercially kept birds, and the shielding obligation applies to non-commercially kept risk birds (for example, hobby chickens). National housing and shielding obligation due to avian influenza established | News | Government.nl.

Tracing Investigation

The NVWA conducts tracing investigations into risky contacts. This investigates whether poultry or poultry products have been transported to or from this location in the period prior to the report. If necessary, additional measures will follow, such as extra sampling or blocking a risky contact company. These measures are communicated via an update in this press release and through the online channels of the Ministry of Agriculture, Fisheries, Food Security and Nature (LVVN).