Anthrax

This study will evaluate safety and clinical benefit of AIGIV used for treatment of patients with systemic anthrax. The study is designed to collect information on safety, clinical benefit (such as extent of anthrax illness and survival) and serum concentrations of AIGIV (for AIGIV pharmacokinetics) and anthrax toxins from sporadic cases of systemic anthrax patients treated with AIGIV.

The goal of this observational study is to evaluate the safety and clinical benefit of two doses of CYFENDUS vaccine when used with the concurrent recommended antibacterial regimen for post-exposure prophylaxis to prevent inhalational anthrax and/or anthrax meningitis.