Grey heron infected with West Nile virus A grey heron in the Noord-Holland-Noord region has tested positive for the West Nile virus. The virus is rare in the Netherlands. Bas van de Meulengraaf
Blood spot test extended as of 1 January 2017 to include two more disorders As of 1 January 2017, the disorders alpha and beta thalassaemia will be added to the neonatal blood spot (‘heel prick’) screening programme.