![]() Buboes are not present in pneumonic plague. Symptoms include swollen, tender lymph glands called buboes. ![]() Bubonic plague is transmitted through the bite of an infected flea or exposure to infected material through a break in the skin. Pneumonic plague affects the lungs and is transmitted when a person breathes in Y. Pneumonic plague can be transmitted from person to person bubonic plague cannot. Both are caused by Yersinia pestis, but they are transmitted differently and their symptoms differ. Is pneumonic plague different from bubonic plague? pestis would require advanced knowledge and technology. Even so, manufacturing an effective weapon using Y. pestis is possible because the bacterium occurs in nature and could be isolated and grown in quantity in a laboratory. Controlling the disease would then be more difficult. Because of the delay between being exposed to the bacteria and becoming sick, people could travel over a large area before becoming contagious and possibly infecting others. Once people have the disease, the bacteria can spread to others who have close contact with them. One to six days after becoming infected with the bacteria, people would develop pneumonic plague. Yersinia pestis used in an aerosol attack could cause cases of the pneumonic form of plague. Why are we concerned about pneumonic plague as a bioweapon? pestis), a bacterium found in rodents and their fleas in many areas around the world. Plague is a disease caused by Yersinia pestis ( Y.
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