The first vaccine for bees has been approved for use in Canada. The Canadian Food Inspection Agency has conditionally licensed an oral vaccine to protect honey bees against a disease called American foulbrood, which can wipe out entire colonies if not treated. The manufacturer, U.S.-based Dalan Animal Health, announced the Canadian approval in a news release on Oct. 16. The vaccine can be used in Canada "under veterinary supervision," the food inspection agency said in an email. American foulbro