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The Impact Of Yellow Fever On Philadelphia

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To fully comprehend the effect the yellow fever had on Pennsylvania in 1793, it is necessary to understand disease itself. This instance of widespread yellow fever in Philadelphia is known as an epidemic. An epidemic occurs when there is a pathogen present in the same area area as vulnerable a large number of people vulnerable to the said pathogen. Another common term for an epidemic is outbreak, but an outbreak usually occurs within a more limited area than an epidemic. An epidemic or outbreak can be brought on by an increase of a microbe that causes illness, the introduction of a disease-causing microbe into a new environment, a change to the environment that allows the pathogen to spread more readily, hosts in an area becoming more …show more content…

At his time, medical professionals did not fully understand yellow fever. In fact, most scientists believed that the virus was spread by contact with infected objects or people, a miscalculation that would not be remedied until the 1840s, half a century after the 1793 epidemic in Philadelphia.
Yellow fever is a virus that is usually found in South America and sub-Saharan Africa, where the virus is spread via mosquitoes. Symptoms of yellow fever often are not noticeable until four to six days after infection and vary in severity. The two phases of yellow fever include the acute phase and the toxic phase. In the acute phase, infected persons will experience mild symptoms such as fever and muscle pain. The acute phase lasts three to six days before evolving into the toxic phase. Symptoms of the toxic phase include high fever, bleeding from body orifices, jaundice, vomiting, and abdominal pain, and, eventually, the toxic phase becomes deadly, leading to low blood pressure, organ failure, shock, coma, or even death.
Though there is now a vaccine for yellow fever, it was not yet developed in 1793. Doctors were at a bit of a loss regarding how to calm the blazing flames of yellow fever epidemics around the world. Some doctors began to use bloodletting as a treatment for yellow fever, which was a very therapy common in early medicine. Bloodletting involves the removal of “bad” or infected blood from the body to rid it

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