USDA approves first vaccine for bees

The USDA has just given approval to a company called Dalan Animal Health for what's being called the first vaccine for honeybees, designed to protect the insects from the plague of American Foulbrood. From The Guardian:

The vaccine, which will initially be available to commercial beekeepers, aims to curb foulbrood, a serious disease caused by the bacterium Paenibacillus larvae that can weaken and kill hives.