Of the different routes of entry what is the most deadly route for anthrax?

The most deadly route of entry for anthrax is through inhalation. Inhalational anthrax occurs when spores are breathed in, leading to severe respiratory distress and a high mortality rate if not promptly treated. This form of anthrax can rapidly progress to systemic infection and sepsis, making it particularly dangerous compared to other routes, such as cutaneous or gastrointestinal exposure. Prompt medical intervention is crucial but often ineffective once severe symptoms develop.