Anthrax infection of the lungs, also known as pulmonary anthrax, that is due to the inhalation of anthrax spores. The inhaled spores multiply rapidly in the lymph nodes in the chest. A person infected with inhalation anthrax experiences local bleeding and tissue death (necro- sis) in these lymph nodes, and the disease spreads to the adjacent lung tissue. The first symptoms are sub- tle, gradual, and somewhat flu-like, including rising fever. In a few days, severe respiratory distress occurs, followed by shock and coma. Prompt recog- nition and treatment are critical. Even with treat- ment, the patient may die. Once called woolsorters’ disease.