Presentation on theme: "Academic Task #1 – Lecture and Cornell Notes on the Bubonic Plague (Webb’s Level 1) Take out a sheet of paper Take Cornell Notes on the following slides."— Presentation transcript:
Academic Task #1 – Lecture and Cornell Notes on the Bubonic Plague (Webb’s Level 1) Take out a sheet of paper Take Cornell Notes on the following slides Be prepared to answer questions based on slides
What causes plague? Plague –caused by a bacterium, Yersinia pestis, Transmitted from infected animals to humans, usually by fleas. Transmitted from infected animals to humans, usually by fleas. May be transmitted from humans to others by: May be transmitted from humans to others by: –direct contact –Touching; or –breathing droplets that contain the bacterium
Academic Task #2 - Answer the following questions (Webb’s Level 1) What causes a plague and what’s the scientific name? How is a plague transferred from an animal to a person? How is a plague transferred from one person to another person?
Academic Task #3 – Continue with Cornell Notes on the Bubonic Plague (Webb’s Level 1) Continue to take notes because you will be asked to do something else with the material soon.
Rodents can be infected with Y. pestis. Fleas transmit the plague bacteria to humans.
Types of Plague Symptoms of plague vary and are grouped into three types: –Bubonic: lymph nodes become swollen, tender, and are termed buboes Patient develops fever, chills, and weakness. This is what is known as bubonic plague.
Bubonic Plague buboes
Types of Plague (cont.) Symptoms of plague vary and are grouped into three types: –Septicemic: Generally, patients DO NOT develop buboes Symptoms may include fever, chills, weakness, bleeding under the skin, abdominal pain, and septic shock with low blood pressure.
Types of Plague (cont.) Symptoms of plague vary and are grouped into three types: –Pneumonic: Symptoms include shortness of breath, cough (sometimes with bloody sputum), and chest pain quickly develop along with weakness, fever, and headaches.
How do people diagnose a plague? Diagnosis – to determine what’s wrong with the person Symptoms appear 2-5 days after exposure. Preliminarily diagnosed by physical examination, by cultures of blood, or other sites Definitive diagnosis –done by immunological tests that identify Y. pestis specifically –Immunological tests – tests on the system that protects you from disease, your immune system
How does plague get treated? Death occurs in about 50%-90% of all people who develop infection with Y. pestis and are not treated With treatment, about 15% of infected people will still die Antibiotics used to treat plague include streptomycin, gentamicin, and tetracyclines among others
How does one prevent getting the plague? Prevention of plague is done by –Eliminating areas where animals, especially rodents, congregate –Avoiding the fleas the rodents carry –Some infections can be prevented by taking antibiotics soon after exposure to the disease. There are no commercially available vaccines against plague There is a small amount available from the U.S. government for researchers that work with Y. pestis.
Academic Task #4 - Answer the following questions (Webb’s Level 1) What are the three different types of plague? What percentage of people die of plague without treatment? What percentage of people die of plague with treatment? How do you prevent getting the plague?
Academic Task #5 – Movie (Webb’s Level 2) Watch the short segments on the following 4 slides. Answer the following question: –What are the concepts that applied to the exchange of the bubonic plague in ancient Europe?