Septicemic plague
In septicemic plague the bacteria grow quickly in the blood, causing severe sepsis. The endotoxins cause disseminated intravascular coagulation (DIC). This is tiny clots of blood throughout the body which stops the blood getting to some areas. This causes the cells in the area to die. DIC uses up the bodies ability to make blood clot, so that it can no longer control bleeding. This means there is bleeding into the skin and other organs, which can cause red and/or black patchy rash and  coughing up or vomiting of blood (hemoptysis/haemoptysis). There are bumps on the skin that look somewhat like insect bites. These bumps are usually red, and sometimes white in the center. Early treatment with antibiotics reduces the death rate to between 4 and 15 percent. People that get this disease must receive treatment in at most 24 hours or they will die. In some cases, people may even die on the same day they get the disease.