Presentation on theme: "Developed by SHS Science Department"— Presentation transcript:
1Developed by SHS Science Department Bubonic PlagueDeveloped by SHS Science Department
2Academic Task #1 – Lecture and Cornell Notes on the Bubonic Plague (Webb’s Level 1) Take out a sheet of paperTake Cornell Notes on the following slidesBe prepared to answer questions based on slides
3What causes plague? Plague caused by a bacterium, Yersinia pestis, Transmitted from infected animals to humans, usually by fleas.May be transmitted from humans to others by:direct contactTouching; orbreathing droplets that contain the bacterium
4Academic 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?
7Academic 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.
8Rodents can be infected with Y. pestis. Fleas transmit the plague bacteria to humans.
9Types of PlagueSymptoms of plague vary and are grouped into three types:Bubonic:lymph nodes become swollen, tender, and are termed buboesPatient develops fever, chills, and weakness. This is what is known as bubonic plague.
11Types of Plague (cont.)Symptoms of plague vary and are grouped into three types:Septicemic:Generally, patients DO NOT develop buboesSymptoms may include fever, chills, weakness, bleeding under the skin, abdominal pain, and septic shock with low blood pressure.
12Types 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.
13How do people diagnose a plague? Diagnosis – to determine what’s wrong with the personSymptoms appear 2-5 days after exposure.Preliminarily diagnosed by physical examination, by cultures of blood, or other sitesDefinitive diagnosisdone by immunological tests that identify Y. pestis specificallyImmunological tests – tests on the system that protects you from disease, your immune system
14How does plague get treated? Death occurs in about 50%-90% of all people who develop infection with Y. pestis and are not treatedWith treatment, about 15% of infected people will still dieAntibiotics used to treat plague include streptomycin, gentamicin, and tetracyclines among others
15How does one prevent getting the plague? Prevention of plague is done byEliminating areas where animals, especially rodents, congregateAvoiding the fleas the rodents carrySome infections can be prevented by taking antibiotics soon after exposure to the disease.There are no commercially available vaccines against plagueThere is a small amount available from the U.S. government for researchers that work with Y. pestis.
16Academic 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?
17Academic 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?