Fig. 2From: Human monoclonal anti-protective antigen antibody for the low-dose post-exposure prophylaxis and treatment of AnthraxELISA. PA83 was used to coat ELISA plates. The wells were then incubated with serial dilutions of PA21, and the bound antibody was detected by adding peroxidase-conjugated goat anti-human antibody followed by tetramethylbenzidine substrate. OD450 = optical density at 450 nmBack to article page