C
A
B
D
D, C, A, B
soma
axon
subarachnoid space
blood-brain barrier
meninges
Neisseria meningitidis
tetanospasmin
Hansen’s disease
acetylcholine
Tetanus
opisthotonos
PrPSc
Dogs
Jonas Salk
Chronic wasting disease
beta sheet
capsule
Amphotericin B
cysticerci
Winterbottom’s
West
cats
antigenic