Differentiating botulinum neurotoxin-producing clostridia with a simple, multiplex PCR assay

Charles H.D. Williamson, Adam J. Vazquez, Karen Hill, Theresa J. Smith, Roxanne Nottingham, Nathan E. Stone, Colin J. Sobek, Jill H. Cocking, Rafael A. Fernández, Patricia A. Caballero, Owen P. Leiser, Paul Keim, Jason W. Sahl