Diseases and Disorders: Plague ppt

[...]... cause the second form of plague the very dangerous septicemic plague, also called plague septicemia 20 Plague Septicemic Plague Septicemia is an infection of the blood, and septicemic plague is an infection of the bloodstream with the plague organism Plague septicemia can be a symptom of bubonic plague, or it can develop by itself directly from the flea bite Symptoms of septicemic plague can start very... eventual death of the infected animal or person Plague is caused by only one organism, Y pestis, but it exists in three different forms, each with its own set of symptoms The three kinds are called bubonic plague, septicemic plague, and pneumonic plague Bubonic Plague Of the three kinds of plague, the most common and well known is bubonic plague Bubonic plague (along with the pneumonic form) is blamed... did long ago, leaving death and destruction in its wake Improved sanitation, better public health programs and education, effective medicines to treat plague, and a much better understanding about what plague is and how it works make another plague pandemic very unlikely chapter one What Is Plague? P lague is a very serious, highly virulent (meaning it causes a great deal of damage to the body), often... tissues to die and eventually turn black It happens most commonly in areas where the vessels are smaller, such as the hands and fingers, feet and toes, and nose The blackening of the skin is what gave the plague the nickname “Black Death.” A very serious symptom of septicemic plague is gangrene (pictured), which is caused by the destruction and blockage of blood vessels due to infection What Is Plague? 21... appetite, extreme fatigue, and enlarged lymph nodes, or buboes They may also have mouth sores, skin abscesses, eye discharge, vomiting, and diarrhea The bubonic form of plague is most common, but cats can also develop septicemic plague, with high heart rate, weak pulse, bleeding, and respiratory distress They can also get secondary pneumonic plague, with cough and other breathing problems and organ failure... can cause diseases Other organisms that can cause diseases include viruses, fungi, and parasites Organisms that cause diseases are called pathogens, also commonly called germs The plague bacterium is found mainly in rodents, especially rats, and lives in the gut of the fleas that feed on them Plague is spread when an animal or human is bitten either by the rodent or the flea that carries the plague bacterium... pneumonic plague are known to have been spread directly from one human to another since 1924 Diagnosing Plague Because of the rapid progression of symptoms and the high mortality rate if it is not treated, diagnosing plague quickly and accurately is important The first step is to get an accurate account of the symptoms—what they are and when they started In the case of bubonic plague, the large, swollen, and. .. Methods of diagnosis and treatment are very similar to that for humans The main concern when domestic animals get the plague is the increased risk of transmission to humans Dogs and cats can bring plague- infected fleas into the house, or they can transmit it directly to people who handle them, especially if the animal has a cough Rodent and flea control are the most important parts of plague prevention... Leukocytes are made in several places in the body—in the bone marrow, the spleen, and the thymus gland They come in two types—T cells and B cells T cells directly attack antigens and destroy them “T” stands for the thymus gland, where T cells mature B cells produce antibodies, special proteins that attach to an antigen and make it easier for the T cells to destroy them “B” refers to the bone marrow,... skin It is also possible for domestic dogs and cats that have had contact with plague- infested wild rodents to transmit plague to their owners, either directly or by carrying infected fleas into the house One very severe form of plague, called pneumonic 16 Plague Plague in Other Animals In July 2005 a pet cat in southern Wyoming was diagnosed with bubonic plague It was the fourth cat diagnosed that . bubonic plague, septicemic plague, and pneumonic plague. Bubonic Plague Of the three kinds of plague, the most common and well known is bubonic plague. . better understanding about what plague is and how it works make another plague pandemic very unlikely. 11 ChapTer one What Is Plague? Plague is a very