The gram-positive. spore-forming bacterium Paenibacillus larvae is the etiological agent of American Foulbrood (AFB). a globally occurring. deathly epizootic of honey bee brood. https://www.roneverhart.com/Necco-Mighty-Malts-Speckled-Malted-Milk-Eggs-Wrapped-9-Ounce-Bag/