Table 1. Potential Anthrax Vaccine Strategies.
| PA-based Vaccination Strategies |
| First Generation (AVA) |
| 2nd Generation (PA102) |
| 3rd Generation (alternative rPA-based) |
| Modified rPA |
| Alternative adjuvants |
| Needle-free delivery |
| Intradermal injection |
| Transcutaneous administration |
| Mucosal administration |
| Intranasal delivery |
| Oral delivery (attenuated bacterial vector) |
| Live, attenuated bacilli injection |
| DNA vaccination |
| Viral vector |
| Plasmid injection |
| Alternative vaccination strategies |
| Bacilli capsular antigens |
| Attenuated whole spores |
| Spore antigens |
| BclA |
| BxpB |
| other |
| Passive antibody therapy |
| Anti-PA |
| Anti-LF |
| Anti-capsule |
| other |