1. 15 minutes could save you 15% on car insurance This Presentation has been brought to you by Geico!

2. What is the black plague? Plague, a disease that is endemic in some animal populations (mainly rodents), is caused by the Yersinia pestis bacterium. This bacterium can be transmitted to humans, usually by a vector such as fleas. Plague usually starts with a flea bite where Y. pestis is transmitted from the flea bite site to lymph nodes that swell (buboes). This type of plague is termed bubonic plague. The bacteria can spread into the bloodstream and eventually infect other organs. In some patients, the bacteria can enter the bloodstream without lymph node swelling (termed septicemic plague); in others, the patients can inhale or swallow droplets that contain Y. pestis that infect the lungs (termed pneumonic plague). Death occurs in about 50%-90% of all people who develop infection with Y. pestis and are not treated; even with treatment, about 15% of infected people will still die. Epidemics of this devastating disease have occurred many times in the past. Skin areas and buboes in untreated people may become dark or a black color as the disease progresses, so plague was originally termed "Black Death."Black Death

3. What started it you ask!!! NOO!!! Yess It was this nasty little booger here that had the people sick to death!!!!!

4. Other causes of the deadly Plague Infection with Y. pestis causes plague in humans. Y. pestis is a bacterium that is gram-negative rod-shaped bacterium genetically related to Escherichia coli that resembles a "safety pin" when stained with chemicals and viewed with a microscope. In general, plague circulates in rodent populations where infected fleas on rodents transfer the bacteria to other rodents. When the rodent population invades human habitats or when humans invade rodent habitats, the infected fleas on the rodents will also bite humans. This flea bite begins plague in an individual. However, once a human is infected, it is fairly easy for that person to infect other people with the organisms especially if they develop pulmonary infection because droplets containing Y. pestis from the lungs are expelled into the air and can infect other humans. Escherichia coli