Bubonic Plague Causes
How Are Bubonic Plague Causes Transmitted?Usually, bubonic plague is contracted when someone is bitten by an infected flea or rodent. In rare cases, Yersinia pestis bacteria on a piece of contaminated clothing or other material used by an infected person can enter through an opening in the skin. Bubonic plague is rarely spread from person to person.
Once inside the body, Yersinia pestis bacteria travel to the lymph nodes and begin to multiply. (The lymph or lymphatic system is a major component of your body's immune system. The organs within the lymphatic system are the tonsils, adenoids, spleen, and thymus.)
Within two to six days of exposure to the plague bacteria, bubonic plague causes symptoms such as fever, headache, chills, weakness, and swollen or tender lymph glands (called buboes, hence the name bubonic).