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
Measles epidemic and Salmonella outbreak cost nearly six million euros The most recent measles epidemic and outbreak of Salmonella Thomson due to smoked salmon have cost 3.9 and 1.7 million euros, respectively.