A dairy farm with 83 dairy sheep has been temporarily blocked from milk supply after a milk sample tested positive for Q fever, an infection usually spread from animals to humans. The source of the infection is believed to be among 35 unvaccinated ewes that lambed and became lactating. The Dutch Food and Consumer Product Safety Authority (NVWA) has launched an investigation and will impose fines if violations of the vaccination obligation are found. The farm's owner is required to vaccinate sheep and goats twice before first mating or insemination, with annual boosters. The NVWA is conducting a contact investigation to prevent the spread of the infection and is looking into potential risks for other animals on the farm.