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Essay about 1918 pandemic flu
Influenza epidemic 1918 essay
Influenza epidemic of 1918-1919
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Throughout 1918 and 1919, influenza spread quickly in three waves killing an estimated 50 million to 100 million people worldwide. With the best-recorded first case having occurred in Fort Riley, the contagious flu spread across military camps around the United States. Due to the world war, the influenza virus was brought over to Europe where it infected people in nearly every country. This disease would end up causing one of the greatest pandemics in human history, but would also catalyze great advancements in science and medicine.
1. The influenza virus is an enveloped virus that contains a genome of eight genes that define what the virus is. Everything begins when the virus enters the airways. Here, influenza viruses specifically attach to the surface of epithelial cells. The viral membrane envelope contains the neuraminidase (NA) protein, which is important for the efficient release of newly produced viruses. It also contains the matrix 2 (M2) ion channel that promotes viral structural changes during cellular entry as well as the influenza hemagglutinin (HA) protein, the key player for viral internalization, which facilitates viral binding to sialic acid decorated receptors on host cells, causing adsorption to the host cell (Samji, p. 3). Barry compares the HA proteins to little spikes and the NA proteins to tiny trees that both protrude all around the surface of the virus (p. 103). When the HA protein spikes come into contact with the sialic acid molecules, both structures bind to one another. Once this binding holds the virus and host cell together, the virus has achieved its first task of adsorption. Next, the virus particles are internalized into endosomes by clathrin mediated endocytosis. The pH of the endosomes drops tr...
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...y do not have energy metabolism, they do not grow or produce waste products, and they don’t respond to stimuli. Although they replicate and produce more of one another, viruses can’t reproduce independently without invading a living cell. Because viruses don’t fulfill all of the characteristics of life, they are not living organisms.
4b. I would definitely recommend this book to a friend. The way Barry presented the science behind the virus and the medicine of the time in a historical context made the book easier to read and made it more interesting. It was easier to understand and retain the actual scientific facts pertaining to the influenza virus because I was reading it in a relevant historical context and not just trying to memorize it like I would from a textbook. I personally enjoy reading about war and disaster because the content is often very interesting.
...ssor Heather MacDougall, “July – 11 November 1918: Pandemic Influenza on the Battlefield and Homefront,” Lecture delivered 9 November, 2011, HIST 191, University of Waterloo
Every year, flu viruses make people sick. Even a garden-variety flu may kill people, but usually only the very young or the very old. In 1918, the flu mutated into something much more deadly. Infecting 500 million people and killing 50-100 million of them, the strain of that type of flu was hastened by World War 1, which increased the lethality of the virus, giving that flu many opportunities to spread during World War 1. At the time that the flu was spreading, science wasn’t advanced enough to find a cure, and medical personnel were extremely helpless when it came to trying to fight the disease.
The Influenza Pandemic of 1918-1919 occurred during the midst of World War I, and it would claim more lives than the war itself. The disease erupted suddenly without a forewarning and spread rapidly across the globe. It seemed as though all of humanity had fallen under the mercy of this deadly illness. Influenza had very clear symptoms as described by William Collier in his letter to The Lancet. After a patient seizes their temperature can run up to 105° or more while their pulse averages at about 90 beats per minute. The high temperature and low pulse are frequently combined with epistaxis (nosebleed) and cyanosis (blueness of the skin). The epistaxis is caused by the high temperature and the cyanosis is caused by a lack of oxygen due to the decreased pulse (Kent 34). The author of Influenza Pandemic of 1918-1919, Susan Kinglsey Kent, provides a brief history of the pandemic and documents from the time period. Many of the included documents show how unprepared and unorganized governments attempted to contain and control a disease they had never experienced, and how the expectations of the governments changed as a result of their successes and failures.
Kolata, Gina. Flu: The Story of the Great Influenza Pandemic of 1918 and the Search for the Virus that Cause It. New York: Farrar, Straus and Giroux, 1999. Print.
The purpose of this paper was to determine the entry method of influenza by tracking an individual influenza virus and endocytic structures in living cells. The main focus of entry was clathrin-mediated pathways and clathrin- and caveolin- independent pathways. These pathways were further researched to understand the development and use of clathrin-coated pits (CCP) and clathrin-coated vesicles (CCV).
The size of the swine flu virus ranges anywhere from ten to three hundred nanometers in diameter. In comparison to real world measurements, one nanometer is one one-millionth of a millimeter. The shape overall is a sphere which means it targets members of the animal kingdom like mammals. The swine flu virus is not categorized in a kingdom, phylum, or class because it is not considered to be living. However, it is part of the order of mononegavirales which includes all viruses that can infect any of the six kingdoms. The family is orthomyxoviridae which is all spheri...
In 1918, things were not going well for the United States in the influenza epidemic. The disease was spreading rapidly and killing many. The United States was also at war, and it was a struggle to keep fighting with the disease on their hands. Germany had also been affected by the disease, and it certainly caused them a great deal of trouble. But the suffering of Germany's army was not enough to alleviate America's difficulty in fighting the war. Influenza was ...
The flu, is characterized as an infection of the respiratory tract caused by influenza viruses. Influenza infection is commonly ranked as one of the most dangerous diseases on Earth because it affects all age groups and can re-occur in any individual. Influenza A, B and C viruses belong to the orthomyxovirus, which is the family of enveloped viruses with segmented, single-stranded, negative-sense RNA genome (Calder et al., 2010; Cox & Subbarao, 1999). Type C cause sporadic mild influenza-like illness in children. Type B are known to cause recurring regional and local epidemic disease, but it is only found in human. Type A virus is the most
The disease has been the source of enormous tragedy, and sadly has claimed the lives of some of our nation's greatest young men, who have successfully fought to push back imposing enemy armies despite tremendous difficulties. After these soldiers returned home a new battle confronted Uncle Sam, as the dark shadow of flu claimed countless the lives of countless civilians and military personnel.
Influenza can be contacted due to close contact with infected individuals, influenza actually originated in Spain, but since then it has spread worldwide with the exception of possibly Antarctica.
The influenza infection has a long history of having devastating effects on people worldwide but with the discovery and use of the influenza vaccine the fatally of the influenza infection decreased. The cause of the influenza infection is a virus. The virus enters the body via droplets coughed or sneezed and inhaled by a host (Bostock-Cox, 2013). Because the virus spreads via droplets it is very easily transmitted from person to person, which can lead to epidemics and even pandemics. In addition, the influenza virus is capable of mutating. The World Health Organization is responsible for tracking influenza virus changes and outbreaks around the world (Bostock-Cox, 2013). When referring to outbreaks in influenza infection the term epidemic is
Almost every age group is at higher risk for severe flu circumstances. Influenza virus is a kind of single-strain RNA virus with its membranes made of hemagglutinin (HA) and neuraminidase (NA), both of which are glycoproteins. The vast issue arising these days regarding the control of influenza disease is the development of resistance among the influenza viruses against existing anti-viral drugs that are being approved. Also, these antiviral drugs have a number of side effects. Riboswitches are present in the non-coding region of mRNA that sense changes in the cellular environment and directly mediate appropriate gene control responses. These riboswitches are primarily found in the 5’ untranslated regions of messenger RNAs. Riboswitch can
The name has been deemed “misleading” since the virus is believed to have started in the United States (Kamradt-Scott, 2012, p. 90). In fact, the United States and Italy were two countries that that experienced heavy impacts from the Spanish Flu (Percoco, 2016). However, Spanish authorities were the first to communicate the effects of the disease in their country and to report the incredibly high mortality rate that came with it (Kamradt-Scott, 2012). Leadership decisions to keep the virus a secret in WWI is believed to have contributed to the high mortality rate worldwide. This outbreak was determined to have spread quickly even without the advancements in international air travel at that time. In only about 18 months the virus had killed approximately 25% of the world’s population. This virus was recognized for impacting those in the prime of their life opposed to only those with weaker immune systems, such as children or elders. This heavy-hitting virus brought about scientific research for examining illnesses and potential treatments or preventative measures. Research first started examining claims that pigs were experiencing similar symptoms that sometimes correlated with times of human influenza impacts. This was soon deemed as a coincidence although some still believed that there was still some relationship between the two. Scientific research did eventually lead to the first vaccination for Influenza A in the 1940’s. This altered the way that the government and individuals responded to the threat of Influenza. Post Spanish Flu Pandemic, the government realized that the threat of Influenza could potentially affect the commitment of military personnel due to the effect that the Spanish Flu had on them and their family. This
The influenza virus is an RNA virus has an envelope that included members of the family Orthomyxoviridae. Its genome is a single negative strand segmented RNA. This virus consists of three types: A, B, and C. Influenza types A and B has eight segments of RNA, but the influenza virus type C only has 7 segments (Cheung and Poon, 2007). Influenza A virus is a virus that spread and infect many species of animals such as pigs, horses, cats, tigers, leopards, marine mammals and fowl and including humans. Type A viruses are divided into several subtypes were composed out of two (2) types of glycoproteins on the surface. These proteins are called hemagglutinin (HA) and Neuraminidase (NA) (Cheung and Poon, 2007).
Despite being one of the deadliest natural disasters in history, the worldwide influenza epidemic of 1918 has been nearly forgotten. This unusually deadly influenza virus killed 675,000 people in the United States, a greater number than U.S. troop deaths in World War I (116,516) and World War II (405, 399) combined. Roughly 40 million people died worldwide from the early spring of 1918 through the late spring of 1919.