Molecular weight of type a botulinum toxin.
Clostridium botulinum type A does not produce a 12,000 molecular weight toxin. The reported isolation of such a material by Gerwing et al. could not be confirmed.
Biological Sciences Laboratories, Fort Detrick, Frederick, Maryland 21701.
J N
JN
Knox
W P
WP
Brown
L
L
Spero