Feb 3, 2026
No active virus detected, further investigations underway
In a recent development from the Netherlands, antibodies against avian influenza have been identified in dairy cows at a farm in Noardeast-Fryslân. However, no active virus has been detected, according to the Dutch Ministry of Agriculture.
Background
The discovery came after a routine test on January 15, 2026, revealed the presence of antibodies in the herd. This prompted the Netherlands Food and Consumer Product Safety Authority (NVWA) to conduct a comprehensive follow-up investigation. Blood and milk samples were collected from all cattle on the farm on January 22, and additional tank milk samples were taken to ensure thorough testing.
No Active Virus Detected
The results, as shared by Agriculture Minister Femke Wiersma, confirmed that no active avian influenza virus was present in the herd. This conclusion was supported by negative results from all virus tests conducted on the milk samples. The Wageningen Bioveterinary Research also confirmed the absence of active virus but identified antibodies in five cows, indicating past exposure to the virus.
Implications for the Market
The presence of antibodies without an active virus suggests that the cows had been exposed to the virus at some point but are not currently infected. This finding is crucial as it helps prevent unnecessary panic and ensures that milk from these cows does not pose an immediate risk to consumers. However, it raises questions about the potential for virus transmission through raw milk, an issue that remains under investigation.
Further Investigations
Minister Wiersma has stated that additional investigations are ongoing, with cooperation from the European Reference Laboratory to ensure accurate results. The outcomes of these tests will inform future risk assessments and any necessary surveillance measures. Meanwhile, concerns about the safety of raw milk consumption have been raised, and the minister plans to consult experts for further evaluation.
The situation underscores the importance of vigilant monitoring and swift response to potential zoonotic threats in the livestock industry. As the investigation continues, authorities remain committed to ensuring public health and safety.