Which sentence contains the central idea of the passage in the American plague?
In a delicately worded letter, Randolph told Washington that no, the president could not move Congress, even in an emergency. Explanation: This sentence shows the main idea of the passage: exactly what Randolph advised Washington.
What do the historical facts in this passage show about the yellow fever epidemic?
Historical records indicate that the epidemic ceased only after winter frosts arrived.
How long does yellow fever stay in your system?
Once contracted, the yellow fever virus incubates in the body for 3 to 6 days. Many people do not experience symptoms, but when these do occur, the most common are fever, muscle pain with prominent backache, headache, loss of appetite, and nausea or vomiting. In most cases, symptoms disappear after 3 to 4 days.
What organs does yellow fever affect?
High fever returns and several body systems are affected, usually the liver and the kidneys. In this phase people are likely to develop jaundice (yellowing of the skin and eyes, hence the name ‘yellow fever’), dark urine and abdominal pain with vomiting. Bleeding can occur from the mouth, nose, eyes or stomach.
How does yellow fever affect the kidneys?
Yellow fever is a hemorrhagic condition that can lead to a high fever, bleeding into the skin, and cell death in the liver and kidneys. If enough liver cells die, liver damage occurs, leading to jaundice, a condition in which the skin takes on a yellowish color.
What bacteria causes yellow fever?
Name and nature of infecting organism Yellow fever (YF) is an African mosquito-borne infection of primates. It is caused by a virus of the Flavivirus genus of the Flaviviridae family. In its natural habitat, it is transmitted between monkeys by forest-dwelling primatophilic Aedes mosquitoes.
Was yellow fever a pandemic?
Yellow fever is an epidemic-prone mosquito-borne vaccine preventable disease that is transmitted to humans by the bites of infected mosquitoes.
Why was there such a mosquito problem in Panama?
The control of malaria was vital for the construction of the Panama Canal. The discovery by Major Ronald Ross that malaria was transmitted by mosquitoes had tremendous impact on development programs in the tropics. Not only was yellow fever eliminated, but malaria transmission was also greatly reduced. …
Who cured yellow fever in Panama?
Dr. William Gorgas
Who helped prove mosquitoes carry yellow fever?
On August 27, 1900, Carroll allowed an infected mosquito to feed on him. He developed a severe case of yellow fever but helped his colleague, Walter Reed, prove that mosquitoes transmitted the feared disease.
Did Walter Reed cure yellow fever?
With Walter Reed’s experiments and Gorgas’s practical application of the Reed commission’s findings, the Army was able to curb and eventually eradicate yellow fever, paving the way for future operations in environments where yellow fever is prevalent.
What connection did Dr Reed and Dr Finlay have to the yellow fever epidemic?
The Reed Commission continued the work of Dr. Finlay and demonstrated through scientific research that Aedes aegypti mosquitoes could transmit Yellow Fever. In his research, Reed also disproved the theory that the disease was spread through contact with clothing and materials tainted with body fluids.