West Nile Virus in Horses

West Nile virus is currently a concern in the Netherlands. In recent weeks, the virus has been confirmed in dozens of horses, including horses in North Holland. Horse owners in Bergen and the surrounding area are therefore advised to remain vigilant.

West Nile virus is transmitted by mosquitoes. Horses cannot transmit the virus to one another. Most infected horses do not become ill, but approximately 20% develop clinical signs. These may include fever, lethargy and loss of appetite. In more severe cases, neurological signs can occur, such as muscle tremors, an unsteady gait, behavioural changes or paralysis.

What can you do?

Try to minimise mosquito bites as much as possible, for example by reducing areas of standing water around stables and pastures and, where possible, keeping horses indoors around dusk.

Unfortunately, we currently have no West Nile vaccines in stock and are unable to order them. We hope they will become available again in October.

Contact us

If your horse develops a fever, suddenly becomes lethargic or shows neurological signs, please contact us. If West Nile virus is suspected, we can examine your horse and, if necessary, arrange additional blood tests.

Would you like to know whether vaccination would be advisable for your horse? Please feel free to contact Dierenartsenpraktijk Kennemerland. We will be happy to advise you.