BEE_LINERS Something to ponder on. Recently, Oxytetracycline (OTC or Terramycin) resistant strains of Bacillus larvae (causative organism of American Foulbrood) have been found in Argentina. See:- Alippi, A. (1994). Sensibilidad "in vitro" de Bacillus larvae frente a diferentes antimicrobianos. Vida Apicola 66:20-24. Any thoughts ??????? Regards, Robert Rice. e-mail [log in to unmask]