Disease Essay Examples - 755 Words

Thought Paper: Pathogens Are Rare Virulence Varies Greatly Less than 1% of bacteria can invade our bodies and making us ill [5]. Such bacteria are pathogenic and have the potential to be disease causing. This means that the remaining 99% are rather ubiquitous in nature and serve beneficial purposes or have no effect on humans. Pathogens vary in complexity and those that remain are a direct result of successfully adapting to their environments and evolving over time to overcome selective evolutionary pressures. A more specific example of how disease causing pathogens can vary in virulence involves the mention of antibiotics and their ability throughout history to temporary lessening the virulence of bacterial strains. The relationship†¦show more content†¦Therefore, virulence varies among isolated cultures, although the origins of these evolutionary adaptations on a molecular level are all interconnected and can be studied though tracing genetic elements of between bacterial populations and those found in animals and humans [3]. Studies in the past tried to directly tie the two phenomena together and confirmed that increased usage of antibiotics were directly correlated with increased resistance to those specific antibiotics. A finding was additionally mentioned that diversifying the antibiotics used to eliminate bacterial populations and reduction in overall use of antibiotics would minimize the levels of resistance in certain bacterial species most commonly found in hospitals [8]. Additionally, Studies found that certain bacterial species with increased exposure to antibiotics are highly prevalent in waste water of hospitals. High levels of resistance displayed in these populations pose as a major risk to environmental health if released beyond clinical waste water systems. Untreated wastewater is therefore an immediate cause of concern [8]. Thus, with this data from past and current studies, pathogens are not in themselves rare, but virulence does vary due to increased exposure to antibiotics and gained resistance that has spread and will continue to do so unless habits are changed with aShow MoreRelatedParkinsons Disease Essay example2312 Words   |  10 PagesIntroduction Parkinson’s disease is a common disease facing many older people across the world. It affects the central nervous system and it impairs cognitive processes, motor skills and other functions. This disease mostly affects the older generation and it manifests itself with symptoms which include rigidity, tremor, postural instability, slowness in movement and others. Other symptoms include sleep difficulties, sensory and autonomic dysfunction. Parkinson’s disease has a high prevalence rateRead MoreCardiovascular Disease Essay example1806 Words   |  8 PagesCardiovascular Disease in the African American Community Causes, Preventions, and Treatments Cardiovascular disease (CVD) refers to the dysfunctional conditions of the heart, arteries, and veins that supply oxygen to vital life- sustaining areas of the body like the brain, the heart itself and other vital organs. Since the term cardiovascular disease refers to any dysfunction of the cardiovascular system there are many different diseases in the cardiovascular category, and many of these diseases areRead More Alzheimer’s Disease and the Symptoms Essay examples838 Words   |  4 Pageswas credited for identifying the very first diagnosed case of â€Å"pre senile dementia† later to be known as Alzheimer’s disease. One hundred and seven years later we are still not completely sure of the causes of this disease and why only certain people get it. There are nearly eight million people in the world with Alzheimers disease and it’s an advancing and irreversible disease that destroys memory and other important mental functions along with behavior. It can result in loss of intellectualRead MoreSkin Disease: Psoriasis Essay example547 Words   |  3 PagesPsoriasis is a noncommunicable, chronic inflammatory skin disease. It is characterized by hyperproliferation of epidermal cells, erythematous patches covered with a distinctive scale and incomplete differentiation of keratinocytes (WHO, Menter 2008, Ashcroft 2000). Depending upon the percent body area affected, psoriasis can be classified as mild (less than 3%), moderate (3-10%) and severe (more than 10%) (Krueger et al 2000,). The worldwide prevalence of psoriasis is around 2% while in developedRead MoreOverview of Alzheimers Disease Essay example948 Words   |  4 PagesAlzheimer’s is a disease that destroys the memory and other important brain functions. Alzheimers is a disease where the brain cells die; which also can cause other brain cells to become disconnected, the result is progressive memory loss and mental breakdown. These chemical breakdowns are enough to interfere with normal everyday activities. The leading cause of Alzheimer’s is dementia, which are several brain disorders that cause social and intellectual skills. The disease affects not only theRead MoreCauses of Disease in Humans Essay examples823 Words   |  4 PagesCauses of disease in humans A disease is usually a medical condition that affects the body of an organism. In humans, disease is often broadly used to refer to any condition that causes pain, dysfunction, distress or death to the person affected. In this sense, it sometimes includes injuries, disabilities, disorders, syndromes, infections, etc. The most common cause of disease in humans is via pathogens; microorganisms such as viruses, bacteria, protozoa, and fungi that cause disease in humansRead MoreCenter for Disease Control Essay example1421 Words   |  6 Pagesappropriations. The Centers for Disease Control and Prevention is example of a government run agency. The Centers for Disease Control and Prevention is one of the most important health agencies in the world. The Centers for Disease Control and Prevention is a federal government run agency that relies on stakeholders and partners to offer important insight in planning and evaluating, and contributions in helping Americans live long, healthy, and satisfying lives. Centers for Disease Control and Prevention Read MoreHealth: Heart Disease Essay example1398 Words   |  6 PagesHow much does my heart rate change after running in place for 10 minutes? 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Alzheimer’s disease is a degenerative brain disorder that leads to memory loss, personality changes, and language problems (GilbertRead More Dementia and Alzheimers Disease Essay examples638 Words   |  3 Pages the condition is known as dementia. Dementia is caused by a variety of disorders, but Alzheimers dementia, or Alzheimers Disease, accounts for many of the cases, particularly in elderly patients. Around age 65, a small percentage of people already are affected by Alzheimers, and by the age of 85, over half of all people are affected (Hensrud 1). Alzheimers disease causes shrinking of brain tissue, as well as formation of amyloid plaques in affected brain tissue, which has been linked to