American foulbrood (AFB) is caused by the spore-forming bacteria Paenibacillus larvae.  Diseased larvae contaminate comb with spores which remain a significant source of reinfection for years to follow. The following are some publications that will help you manage AFB efficiently  and effectively.

Shaking is an Effective and Profitable Method for Managing AFB (Melathopoulos, Pernal and Albright 2007)