There have not been enough cases of inhalation anthrax to know the specific anthrax prognosis. Although death rates for inhalation anthrax are based on incomplete information, the rate is extremely high, approximately 75 percent, even with all possible supportive care including appropriate antibiotics.
Gastrointestinal Anthrax Prognosis
For gastrointestinal anthrax, the death rate is estimated to be 25 to 60 percent. The impact of early antibiotic treatment on the anthrax death rate is unknown.