In 1796‚ the scientist Edward Jenner injected materials from a cowpox virus into an 8 years old boy. By doing so he guessed that this would provide the protection needed to save many people from deadly outbreaks of the smallpox virus and it turns out to be successful. When foreign microbes invade the human bodies‚ the immune system is automatically activated itself to a series of responses by 1) identifying the invaders from entering the body and 2) eliminating them before it can harm the hosts’
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venom to protect themselves from a snake bite. To gain immunity to smallpox‚ the Chinese smeared their cuts with cowpox. In the 18th century‚ smallpox continued to kill thousands of people. Edward Jenner‚ a medical student‚ noticed that people who previously contracted cowpox did not become infected with smallpox. Jenner used fluid from a cowpox blister to infect an eight-year-old boy. Later‚ that same boy showed no signs of smallpox when Jenner infected him with the disease. Jenner’s success led him
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7 Worst Killer Plagues in history Smallpox (430 BC? - 1979): Killed more than 300 million people worldwide in the 20th century alone‚ and most of the native inhabitants of the Americas Smallpox (also known by the Latin names Variola or Variola vera) is a contagious disease unique to humans. Smallpox is caused by either of two virus variants named Variola major and Variola minor. The deadlier form‚ V. major‚ has a mortality rate of 30–35%‚ while V. minor causes a milder form of disease called
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current in our time.” Many people have no knowledge of these vaccines. They fear that vaccinating your child may lead to problems such as Autism. Even though these accusations against vaccines were quickly proven wrong‚ many people still distrust their effectiveness. While the debate on vaccines continues to go on to this day the best way to educate everyone about these effective inventions would be to look at the facts.
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Defence against Disease and the Immune System In this essay I have distinguished clearly between active/ passive‚ natural/artificial immunity and described some methods of vaccine production. I have critically compared the effectiveness of the smallpox vaccination programme with programmes aimed at control of measles‚ polio‚ influenza‚ malaria and cholera. Introduction (Immune System‚ 2012) “The immune system is made up of a network of cells‚ tissues‚ and organs that work together
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am here to talk a bit about the outbreak to give it some context. There is evidence that measles has been with humanity for a long time. The history of measles dates back to the 9th century when an Arab physician distinguished between measles and smallpox in his medical notes. In 1757‚ a Scottish physician‚ Francis Home‚ demonstrated that measles was caused by an infectious agent that was present in the blood of his patients. Two hundred years later in 1954‚ John F. Enders and Thomas C. Peebles were
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there is no link between vaccines and autism. Vaccines are generally safe‚ although they can cause some rare‚ typically minor side effects. The (IOM) Institute of Medicine in 2011 concluded vaccines are not linked to autism or serious medical deficient‚ including Type 1 Diabetes.
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That first vaccine used was the cowpox virus vaccine‚ that protected humans against the very similar smallpox virus. However even before Jenner introduced that vaccination‚ Asian physicians were using the main idea of vaccines by administering children with bacteria of the lesions of people who had the suffered from smallpox‚ to protect the children from obtaining the smallpox disease. However the Asian physicians basic vaccine idea did not work as well for them as they
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Despite overwhelming evidence supporting the safety and benefits of vaccines‚ fear of vaccinations has proven resistant to information leading to a rise in refusals among parents in developed countries (Dipietro). In modern society with the rapid pace of vaccine development along with new technology‚ the history and importance of vaccines seem forgotten‚ leading people to underestimate the severity of infectious diseases. “Those who do not remember the past are condemned to repeat it‚” George Santayana
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and here is why. Vaccines cause your immune system to produce disease-fighting antibodies without causing the disease itself. Today‚ more than 20 serious human diseases can be prevented by vaccination. For some diseases‚ you need to be vaccinated only once in your life. For other diseases‚ such as measles‚ tetanus‚ and influenza‚ you may need to be vaccinated at regular intervals. Well‚ in the past‚ smallpox killed hundreds of millions of people. Today‚ thanks to the smallpox vaccine‚ the disease has
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