The Transmission of Diseases from Livestock
The signs at the Philadelphia International Airport are bold and make a clear point. The bright, yellow billboards all but shout: "Keep Foot and Mouth Disease out of America." Soon after seeing these signs upon entrance to the airport, travelers are greeted by customs agents who check documentation and bags to insure that the traveler has not been prone to the disease on his journeys. Any traveler exhibiting the warning signs of an individual who carries the disease is quickly swept away- removed from the general populace in order to prevent possible spreading of the disease.
The above precautions may seem extreme. Then again, the precautions may appear normal in a world that has quickly strengthened airport security in response to recent terrorist activities. Neither of these reactions to the security checks would be fully accurate. The security checks preventing free entrance by individuals who have come into contact with animals or areas that house animals abroad are an innovation designed to prevent the most common method for spreading disease. These precautions have been implemented in order to prevent the spread of diseases infecting livestock.
Throughout the course of history, diseases have been the greatest killers of humans. In fact, the winners of most wars were simply the ones who proved less susceptible to the germs carried by the enemy (Diamond, p. 197). Diamond correctly points out, then, that diseases have been the largest shaper of history. For instance, what would the world look like now if the Native Americans had carried germs that were far more potent than the Spanish conquistadors? (p. 197)
The diseases that have been the great molders of the human experience are very often and quite easily traced back to animals, specifically livestock. Food production was seen relatively early in history of civilization as a better means for providing for a great number of people than the hunter-gatherer model that was once the primary model of existence. The success of food production in maintenance of human life leads to a society which has become dependant on farming, ranching, and other ways of life that produce foods from animals. The increased number of individuals able to be supported by a society supported by agriculture serves as an important factor in the spreading of disease. The most common method for spread of disease is direct transmittance from the animals to the humans.
Although populations in ancient societies suffered attacks, invasions, starvation, and persecution, there was a more efficient killer that exterminated countless people. The most dreaded killers in the ancient world were disease, infections and epidemics. In many major wars the main peril was not gunfire, nor assault, but the easily communicable diseases that rapidly wiped out whole divisions of closely quartered soldiers. Until the time of Hippocrates, in the struggle between life and death, it was, more often than not, death that prevailed when a malady was involved. In the modern world, although illness is still a concern, advances in thought and technique have led to the highest birth rates in recorded history. No longer is a fever a cause for distress; a quick trip to the store and a few days of rest is the current cure. An infection considered easily treatable today could have meant disablement, even death to an ancient Greek citizen.
Before discussing how disease has shaped history and altered cultures, it is important to understand how they themselves have developed and changed throughout history. Disease, in the broadest definition of the word, has been present since the beginning of humanity. Even ...
There is data to suggest that around the beginning of the 16th Century, there were approximately 18 million Native Americans living in North America. By 1900 the population of the Indigenous peoples had declined to about 250,000. The common belief has been that this rapid decrease in population has been due to the disease that Europeans brought with them when they migrated to the “new world”. Historian Alfred W. Crosby writes that “it is highly probable that the greatest killer was epidemic disease, especially as manifested in virgin soil epidemics.” Many reports and essays focus on disease as the main killer of the Indigenous population, but few often look at how the European and Indigenous population responded to disease. The questions that this report will address are based on documents located within chapter five of the textbook Major Problems in Atlantic History edited by Alison F. Games and Adam Rothman. The documents are Two Governors Describe the New England Smallpox Epidemic, 1633-1634, and Indians Respond to Epidemics in New France, 1637, 1640. The questions addressed in this report include: How did the Europeans interpret the disease among the native population, and how did they respond to it? How did the Native Americans respond to European intervention in fighting off the disease? Were the Europeans aware that they had brought this disease with them to the “New World”? The European view of the epidemics against the Indigenous peoples were seen as acts of God trying to purge the world of “unchristian” peoples. The Europeans were only acting as they were instructed to by their authority, the Catholic Church. All European action was heavily regulated by the church, and thus is reflected in their treatment of the sick N...
The extraordinary good health of the natives prior to the coming of the Europeans would become a key ingredient in their disastrous undoing. The greatest cause of disease in America was epidemic diseases imported from Europe. Epidemic diseases killed with added virulence in the " virgin soil" populations of the Americas. The great plague that arose in the Old World never emerged on their own among the western hemisphere and did not spread across oceans until Columbus' discovery.
Europeans first touched the shores of America, Old World crops such as wheat, barley, rice, and turnips had not moved west across the Atlantic, and New World crops such as maize, potatoes, and sweet potatoes had not traveled east to Europe. Americas, there were no livestock, all animals of Old World creation. Except for the llama, alpaca, dog, and guinea pig, the New World was not identical to the trained animals associated with the Old World, nor did it have the viruses associated with the Old World’s small populations of humans and such associated animals as chickens, cattle, black rats, and Aedes aegypti mosquitoes. Among these germs were those that brought smallpox, measles, chickenpox, influenza, malaria, and yellow fever. The Columbian exchange of crops affected both the Old World and the New. Amerindian crops that have crossed oceans for example, maize to China and the white potato to Ireland has been incentive to population growth in the Old World. The latter’s crops and livestock have had much the same outcome in the Americas. The full story of the trade is very long, so for the hope of shortness and sharpness let us focus on a certain area, the east...
The great explorations and subsequent migrations of Europeans to the Americas in the 15th-18th centuries opened up those entire continents to the fatal impact of the infectious diseases of Europe. European conquests owed a good deal of their success to the effects of disease on the indigenous peoples, especially smallpox in the Americas. Before Spanish conquest of the New World, there was no sickness or great health related issues that Natives were forced to face. That all changed, however, when European explorers, Spanish conquistadors in particular, unknowingly brought the deadly disease of smallpox into Latin America. A recollection of days before the Spanish by an Indian of the Yucatan from the book of Chilam Balam of Chumayel shows just how disease free natives were before the Spanish arrival: “There was then no sickness; they had no aching bones; they had then no high fever; they had then no smallpox; they had then no burning chest; they had then no abdominal pain; they had then no consumption; they had then no headache. At that time the course of humanity was orderly. The foreigners made it otherwise when they arrived here.” Then, after the Spanish came to the New World and spread smallpox to the natives, over 95% of them were killed. The Taino population of Hispaniola that was once estimated to be as large as 8 million went virtually extinct. Central Mexico’s population went from 15 million in 1519 to 1.5 million a century later. ...
Native Americans had previously remained isolated and healthy, as the rest of the world was ransacked by diseases like the Black Death. Europeans had been able to build up their immune system to these diseases; the Natives had never encountered European diseases like mumps and smallpox. Native Americans were left “immunologically defenseless” against the volatile European diseases (Document 6). Document 6 was written by a historian, which would explain why he is better able to write from a less biased view of the colonization of the Americas, as well as how he understands the consequences diseases had on the Native population. Although Europeans were not always purposely infecting the Native American population, the introduction of new diseases is what led to the Native population to decline by 82%. Diseases began to “spread during October” throughout major civilizations like the Aztecs and the Incas, where the disease “lasted for seventy days, striking everywhere in the cities and killing a vast number of [Native] people” (Document 4). Document 4 was written in the point of view of the Aztecs, one of the several Native American tribes to be victimized by disease. The Native 's’ point of view is significant because readers will better be able to understand the lasting impact the disease had on the Native population. Native civilizations like the Aztecs with Tenochtitlan had cities bigger in size than most European cities. This caused the disease to spread rapidly and stunted production in Native American tribes. Diseases weakened the Native population, further preventing them from attempting to abstain the Europeans’
One of the determining factors of a person’s survival from the variola virus during the period of the American Revolution in North America was race. Even though the variola virus in and of itself does not factor in race to determine whether to infect one person over another, race did factor in significantly in the survival rate when exposed to the virus. Part of Fenn’s argument is that Europeans had an innate immunity over diseases that those who were not from Europe did not have. She argued that since Europeans come from a world with a large array of diseases their bodies had built up certain protections against the variola virus. This innate immunity that Fenn discussed brought about certain mechanisms within the body that pr...
Microbes from Europe introduced new diseases and produced devastating epidemics that swept through the native populations (Nichols 2008). The result from the diseases brought over, such as smallpox, was a demographic catastrophe that killed millions of people, weakened existing societies, and greatly aided the Spanish and Portuguese in their rapid and devastating conquest of the existing American empires (Brinkley 2014). Interaction took place with the arrival of whites and foreigners. The first and perhaps most profound result of this exchange was the imp...
The Columbian exchange was the widespread transfer of various products such as animals, plants, and culture between the Americas and Europe. Though most likely unintentional, the byproduct that had the largest impact from this exchange between the old and new world was communicable diseases. Europeans and other immigrants brought a host of diseases with them to America, which killed as much as ninety percent of the native population. Epidemics ravaged both native and nonnative populations of the new world destroying civilizations. The source of these epidemics were due to low resistance, poor sanitation, and inadequate medical knowledge- “more die of the practitioner than of the natural course of the disease (Duffy).” These diseases of the new world posed a serious
William H. McNeill makes a monumental contribution to the knowledge of humanity in his book Plagues and Peoples. He looks at the history of the world from an ecological point of view. From this viewpoint the history of human civilization is greatly impacted by changing patterns of epidemic infection. Plagues and Peoples suggests that "the time scale of world history...should [be] viewed [through] the "domestication" of epidemic disease that occurred between 1300 and 1700" (page 232). "Domestication" is perceived "as a fundamental breakthrough, directly resulting from the two great transportation revolutions of that age - one by land, initiated by the Mongols, and one by sea, initiated by Europeans" (page 232). This book illustrates how man's environment and its resident diseases have controlled human migration, as well as societal successes and failures. McNeill discusses the political, demographical, and psychological effects of disease on the human race. He informs his audience that epidemics are still a viable threat to society, and warns of potential future consequences.
The Columbian Exchange was a trade network that was indisputably a major event in world history due to the exchange of ideas, crops, animals, and diseases between the Old World and the New World, making the world “smaller”; it is undeniable that had the Columbian Exchange not happened, all of our lives today would be drastically different. During 1450 to 1750 – the time period of the Columbian Exchange – the mumps, a virus that was originally discovered in Europe, was transferred from the Old World to the New; in both hemispheres, diseases were transmitted unknowingly until people started noticing the correlations between those who got sick and what might have caused them to contract it, which led to diseases being used as weapons in biological warfare, causing the indigenous peoples to die off and allowing the Europeans economic prosperity.
Food-borne transmission refers to any illness that results due to the consumption of contaminated food, pathogenic bacteria, viruses, or parasites that contaminate food, as well as chemical or natural toxins such as poisonous mushrooms (cdc.gov). Bacteria is the most often the pathogen that causes food-borne illness. This is usually due to improper handling of foods, improper preparation of food and improper food storage. According to the CDC, the top 5 contributing pathogens to food-borne illness are Norovirus, non-typhoidal Salmonella, Clostridium perfringens, Campylobacter spp. and Staphylococcus aureus.
The purpose of this paper is to focus on a subject within my educational field that I can research and inform the public about. I plan to become a veterinarian .which would require my daily contact with humans and animals. Zoonotic diseases are risk factors that I have to be aware of in order to protect myself as well as my patients and their owners. Luckily developments in medicine have made it possible to cure zoonotic diseases and even prevent them from ever being contracted.
Food borne illnesses are caused by consuming contaminated foods or beverages. There are many different disease-causing microbes, or pathogens. In addition, poisonous chemicals, or other harmful substances can cause food borne illnesses if they are present in food. More than two hundred and fifty different food borne illnesses have been described; almost all of these illnesses are infections. They are caused by a variety of bacteria, viruses, and parasites that can be food borne. (Center 1)