Which of the following forms of anthrax infection causes most fatalities?

Inhalation anthrax is considered the most lethal form of anthrax infection due to its serious nature and swift progression. When Bacillus anthracis spores are inhaled, they can rapidly disseminate in the body, leading to severe respiratory distress. The initial symptoms may resemble those of a common cold or flu, which can result in a delayed diagnosis. As the disease progresses, it can quickly lead to severe complications such as respiratory failure, septic shock, and ultimately death if not treated promptly.

Inhalation anthrax has a high mortality rate, especially without early intervention and appropriate antibiotic treatment. In contrast, other forms of anthrax, such as cutaneous and gastrointestinal anthrax, generally have better outcomes with timely medical care. Cutaneous anthrax is associated with localized skin lesions and is typically less severe. Gastrointestinal anthrax involves symptoms related to the digestive system and, while serious, also has a lower fatality rate compared to inhalation anthrax. Neurologic anthrax is not a recognized common form of infection and does not encompass the primary pathways associated with Bacillus anthracis. Therefore, inhalation anthrax stands out as the most critical and dangerous form, underscoring the importance of early detection and intervention.