11. Pneumonic plague is the deadliest and most easily communicable form of the disease.12. But it did happen with smallpox, and with pneumonic plague in the 1300s. 13. In extremely rare cases, bubonic plague can transform into pneumonic plague , a contagious form. 14. Although most people died of bubonic plague before the pneumonic plague could kill them. 15. Soviet scientists had assigned a so-called contagion index of nearly one to pneumonic plague . 16. Methods for diagnosing botulism, viral hemorrhagic fever, pneumonic plague and smallpox are similarly described. 17. Generally, those in contact with a pneumonic plague victim are also treated with antibiotics. 18. The danger of pneumonic plague exists with each bubonic case. 19. An even deadlier form, pneumonic plague , develops when a person inhales Y . pestis. 20. The pneumonic plague bacteria then showed up in blood tests.
