kooiker breed of dog lying upright on a bed looking into the camera while licking its lips.

Polymyositis Update

See the Latest Information Released by VHNK

August 17, 2026

An informative, detailed letter has been distributed by the VHNK to the breed clubs around the world regarding the latest vote on the use of Kooikers that have been tested to carry the Polymyositis gene.

β€œThe breeding objective must therefore be to ensure that, within a few years, the breeding population consists
exclusively of PM1/WW dogs. That is the task breeders are facing.”

To read the complete document, which explains the concept in detail, please use the following link.