Immunization Immunization immunization, what an important impact immunization had on our society, country and the world. Before we understood disease and its causes, humans just accepted the fact that some people just were prone to certain illness and some where not. Then as technology advanced we began to ask the question, why do people get sick? More specifically, why is did my loved one get sick? Why did the whole family die from a sickness that only one family member obtained? These questions lead to the investigation of microbiology and the microscopic world of bacteria, fungi, viruses, protozoan and worms. Human sells are also part of this microscopic world, which lead to the discovery of a microscopic war between healthy human cells
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The human is a collection of individual cells (about 5 trillion in a healthy adult), cells work together to form tissues and tissues work together to form organs and organs make organisms. Bacteria, also a cell, roughly 1/10 the size of our cells (I say 1/10 to keep my discussion simple, some are larger) many of these bacteria invade our cells by gaining entry then use our metabolism to enrich themselves before destroying that cell (though virus, fungi, and protozoan present life threatening illness, bacteria poses a much more serious threat) Cells get infected, tissues get destroyed and organs fail, resulting in termination of the organism. Of course nature gave us defense against this pathological process, giving rise to our immune system. Amazing is the only word to describe our continuously evolving immune system. In short, our immune system is on constant patrol, searching for invaders. Many bacteria (about 95%) are actually healthy and live with us providing many helpful function, a symbiotic relationship if you will, but we are only going to focus on disease causing. As our immune cells scour our internal environment in search of invaders, once encountering one our immune cells very efficiently destroy these invaders in several ways. However, some invaders are very talented in evading our defenses, for …show more content…
By immunizing every person in a society in and around the world we prevent widespread disease, which is a huge concern and public safety matter. Of course we are only as strong as our weakest link, some underdeveloped nations around the world have little access to vaccines and unfortunately suffer the fate of that inevitably illness. This has been a concern because of the influx of foreigners entering well developed nation, who can potentially infect citizens with harmful pathogens native to there home country possibly causing an epidemic that may quickly get out of control. The world is much smaller now, with transcontinental travel greater than ever before. This is why global health has become so important, what effect one affects us all. Quickly I would like to mention the phenomenon of why HIV remains an insurable disease, I mentioned the specifics of antigens on the surface of all cells, the great majority of organisms (including bacterial, viral, fungal and even human) have specific antigens made by that organism that we have been able to harness and manipulate, but some organisms such as HIV, hepatitis C and meningococcal poses variable antigenicity meaning these organisms change there antigens quite frequently, never allowing immunity to any one specific
The human is a collection of individual cells (about 5 trillion in a healthy adult), cells work together to form tissues and tissues work together to form organs and organs make organisms. Bacteria, also a cell, roughly 1/10 the size of our cells (I say 1/10 to keep my discussion simple, some are larger) many of these bacteria invade our cells by gaining entry then use our metabolism to enrich themselves before destroying that cell (though virus, fungi, and protozoan present life threatening illness, bacteria poses a much more serious threat) Cells get infected, tissues get destroyed and organs fail, resulting in termination of the organism. Of course nature gave us defense against this pathological process, giving rise to our immune system. Amazing is the only word to describe our continuously evolving immune system. In short, our immune system is on constant patrol, searching for invaders. Many bacteria (about 95%) are actually healthy and live with us providing many helpful function, a symbiotic relationship if you will, but we are only going to focus on disease causing. As our immune cells scour our internal environment in search of invaders, once encountering one our immune cells very efficiently destroy these invaders in several ways. However, some invaders are very talented in evading our defenses, for …show more content…
By immunizing every person in a society in and around the world we prevent widespread disease, which is a huge concern and public safety matter. Of course we are only as strong as our weakest link, some underdeveloped nations around the world have little access to vaccines and unfortunately suffer the fate of that inevitably illness. This has been a concern because of the influx of foreigners entering well developed nation, who can potentially infect citizens with harmful pathogens native to there home country possibly causing an epidemic that may quickly get out of control. The world is much smaller now, with transcontinental travel greater than ever before. This is why global health has become so important, what effect one affects us all. Quickly I would like to mention the phenomenon of why HIV remains an insurable disease, I mentioned the specifics of antigens on the surface of all cells, the great majority of organisms (including bacterial, viral, fungal and even human) have specific antigens made by that organism that we have been able to harness and manipulate, but some organisms such as HIV, hepatitis C and meningococcal poses variable antigenicity meaning these organisms change there antigens quite frequently, never allowing immunity to any one specific