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Laying hens in the chicken farm of Avicole Delacuisine in Daillens, Switzerland, 16 November 2016. Protective measures against bird flu are being introduced nationwide after cases in wild birds were found by Lake Geneva and Lake Constance. From Wednesday Nov. 16, all feed and water for poultry will have to be kept inside to prevent any possibility of wild birds coming into contact with farmed birds, the Federal Food Safety and Veterinary Office said on Tuesday. (Photo by Laurent Gillieron/EPA)
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