Causes and spread of infection Essay Example for Free

Causes and spread of infection Essay Bacteria. These organisms are made up of just one cell. They have the power to divide so can multiply on their own. Some bacteria are harmless and can be of use in the aid of digestion and are found in the intestines. Other bacteria can be the cause of diseases. These bacteria have to find a way in to the body to be of harm and can make their way through the skin or be digested and attack our immune system. Viruses. These micro-organisms are very tiny. They invade living normal cells and use these cells to multiply and produce other viruses like themselves. Eventually this kills off the normal cell and can make you ill. Parasites. These are micro-organisms that live off other organisms or a host so they are able to survive. Some parasites don’t affect the host. But others grow, reproduce, or can even give off toxins that make the host sick resulting in a parasitic infection. They include; protozoan, fungi, and multi-cellular organisms. Fungi. These are single celled organisms a little bigger than bacteria. They do not make their own food so they get their food from absorbing the nutrients from their surroundings. Common illnesses and infections causes. Bacteria: Acute Rheumatic Fever Anthrax, Bacterial Vaginosis, Botulism, Brucellosis, Cholera. Diptheria. Gastroenteritis. Legionnaires Disease . Listeriosis. Meningitis Salmonella. E.Col. Staphylococcus Aureus Infection. Tetanus. Toxic Shock Syndrome.. Tuberculosis Typhoid . Whooping Cough (Pertussis) Viruses. Measles Mumps Rubella Influenza Polio Hepatitis A+B Herpes 1+2 HIV Noro Virus Parasites Sleeping sickness Thread, Hook and Tape worms Scabies Malaria Head Lice Elephantiasis Fungi: Aspergillosis, Blastomycosis, Candidacies, Warts, Athletes Foot, Thrush Ring Worm Tinia Capitis. Infection is when the the body is invaded with micro-organisms that multiply these can be bacterial, viruses and parasites which are not normally found in the body. Colonisation is the presence and multiplying of micro-organisms and can be found on or in an individual; the individual can be a carrier of the infection but may have no signs or symptoms of illness, although they can infect others. Systemic infection this means that the infection is widespread throughout the body and must be assumed to be in all organs. Localised infection. This means that an infection caused by bacteria is limited to a certain area. Bacteria invade the body at a specific point and remain there, multiplying, until treated. Infection can enter the body by breathing it in, ingesting it by eating contaminated food. And absorption through the skin or via an open wound Poor practice that may lead to the spread of infection can be; Poor personal hygiene, not washing hands correctly, not using PPE. The incorrect disposal of rubbish and waste materials. not storing or cooking foods properly, not cleaning your surroundings, not covering your nose or mouth when sneezing or coughing, direct contact with bodily fluids not following policies or reporting outbreaks or episodes of disease, Conditions needed for growth of micro-organisms include: Moisture: micro-organism need water to grow. Water must flow freely in and out of cells for the transfer of nutrients and waste products. Appropriate Temperature: The majority of human pathogens are Mesophilic. These can grow between a wide range of temperatures 5-63*C –Body temperature is 37 degrees; this is the ideal temperature for these bacteria to multiply. If it is too cold then the bacteria can remain dormant. And too hot a temperature can slow the growth down. Nutrients: All microorganisms need a food source. The  food sources can vary, but the organisms extract nutrients from substances such as proteins, fats and carbohydrates. Every micro-organism needs a mixture of carbon, nitrogen, phosphate, sulphur, water and vitamins. Proper pH: Most human micro-organisms are within the acidophilus group; this means that they prefer a pH or 0.0-5.4 Gases: Most micro-organisms require an environment of 5-10% CO2. Time: bacteria can multiply in 10-20 minutes in these conditions. In the correct conditions micro-organism are able to grow, respire, and reproduce. Sources of infection and how they enter the body: Food all bacteria need food to grow. Vegetables and raw meat from any animal are significant sources of contamination. Bacteria are always present in animal intestines. These can spread through meat products during slaughter or when a product is minced. . The bacteria can then get carried through the food chain. If the meat product is not cooked properly then the bacteria enter the body through the mouth and are absorbed through the digestive system once we have eaten them. Water: Stored, untreated or incorrectly treated sources of drinking water carry pathogenic micro-organism like rivers, lakes and reservoirs which can cause infections. These enter the body by the mouth and enter the digestive system once we have drunk the contaminated water. Soil: Dirt: there are many bacteria living in soil. These can cause infection if food is not washed properly in clean water and any food preparation surfaces that have been used need to be cleaned well. These bacteria can be then carried through the food chain and then enter the body through the mouth and again are absorbed through the digestive system when we eat. These bacteria can also be transmitted through touch and we can then ingest these as it is easy for our hands to become contaminated and if we put our hands in or near our mouths then we can ingest them. Also if our hands are not clean and we touch un contaminated food it can easily end up becoming contaminated. People: Healthy people carry pathogenic bacteria this can be found in the mouth .nose. Skin, hair ears throat, cuts and spots. If suffering with an infection, diarrhoea and or vomiting you should not handle food. Infection can be transferred by touch. Some diseases like scabies and herpes can be transferred by direct skin to skin contact. People who have an infection  like a cold and who then touch inanimate objects can leave germs these germs may be survive for a certain length of time, if another person touches these objects the germs can be passed on to them. Disease can also be passed on from person to person through coughing and sneezing. Droplets can be sprayed into the air and these can enter a person’s body through inhalation when they breathe. Sexual contact and the exchange of bodily fluids like seamen can carry infections like HIV. Air, Dust, Dirt Food Waste: dust and dirt are carried through the air and these contain millions of microscopic particles of dead skin, food and other debris that are covered in pathogenic bacteria. These bacteria can enter the body via the nose and lungs when we breathe. As they can also be found in the surroundings around us these can be transmitted and enter the body via touch. Animals Pests: insects and animals all carry harmful micro-organisms on and in their bodies. (You only need to think of the activities of a fly and what it lives and lands on). Their droppings, eggs, fur, nest materials, mites, and dead bodies can all cause contamination As animals are mobile these are transmitted very easily and infection can be spread where ever they go .some enter the body directly in to the blood stream like the spread of malaria via the mosquito. Others can leave the surroundings that are contaminated and spread through touch. These can enter the body when we touch ourselves or our food. Sewage: contamination from this is dangerous it contains many pathogens and allergens that fester in sewage and are responsible for a great number of infections. Airborne infections can be caused by sewage these can enter the body via inhalation. These pathogens can also be present in the water supply and food in surrounding areas and can enter the body via ingestion. Infection can also be spread by touch and animals. RISK: A person is more likely to pick up an infection if they have a poor immune system. The frail and elderly, babies and young children, people on immune suppressant medication as it compromises their immune system. People with long-term illnesses, cancer patients who are undergoing chemotherapy. People who are convalescing, pregnant women and their unborn baby. There are also people who come into regular contact with infectious agents; these people  have a higher risk of picking up an infection. For example; care workers, people who deal with infectious waste, medical staff. Sewage plant workers

The Manifestation of Pride in The Great Divorce by C.S. Lewis Essay

The Manifestation of Pride in The Great Divorce by C.S. Lewis The Great Divorce by C.S. Lewis suggests that choices made on earth have a consequential effect towards our acceptance into heaven or our plummet into hell. In this book pride manifests itself in a hundred subtle ways as souls whine about perceived injustices or irrational motives. Thankfully, a few tourists do humble themselves, become transformed into marvelously real beings, and remain in heaven. But most don't, about which the great Scottish author George MacDonald, Lewis' heavenly guide, says, â€Å"They may not be rejecting the truth of heaven now. They may be reenacting the rejection they made while on earth†. George MacDonald the narrator/teacher, from whom Lewis found inspiration for his book, is the guide in the journey through the gates of heaven. This provides great wisdom throughout the book which is not understood without reflection. MacDonald in essence presents Lewis with a choice while journeying in the gates of heaven. The stories of lost ghosts in the heavenly gates only provide reflection for Lewis’ own choice. This choice is not revealed by Lewis, rather it is up to the reader to make his/her own choice. MacDonald gives guidance towards our choice, â€Å"The choice of every lost soul can be expressed in the words, ‘Better to reign in Hell than serve in Heaven.’ There is always something they prefer to joy....† (71). At one point in the book McDonald observes a ghost with Lewis and suggests that truth is a lifelong process, our life longs for this truth. Although we may not all realize truth because of lack of time, Lewis suggests it’s just a matter of obtaining the truth through good use of time. â€Å"Evil can be undone, but it cannot ‘develop’ into good. Time does not heal it† (Preface: VIII). Time is in essence, if perhaps used in the way of authentic leisure, a God given tool for overcoming evil and obtaining the truth of heaven. The women in chapter eleven loves her son so much that she has no love left to give and no room for love to be received. The spirit offers to open love to her, when she replies by requesting to see her son. This love has perhaps prevented her from receiving intellectus (receptivity of knowledge), and in my mother’s case, even the ratio (reasoning) is affected. The saying â€Å"love conquers all things† is true, even if it is not also conquering for the goo... ...tellectus. However, while painting in the ratio he noticed some things were more beautiful to paint than others. Ratio is what caused him to not enter through the gates of heaven. He had not preserved his intellectus or true beauty of things. He had lost intellectus through realization of time, of time slowing. So, instead of letting time go he grabbed it which brought him to reason his paintings through the mind rather than the spirit. â€Å"Reality never presents us with an absolutely unavoidable ‘either-or’; that, granted skill and patience and (above all) time enough, some way of embracing both alternatives can always be found† (Preface:VII). Lewis suggests here that time if spent right can bring us to self-realization of our journey, and in effect influence our choices. These choices are dependent on time. As wrong choices are made only in time, no truly rational choices can be made will out of the realm of time. Time is the evil that surrounds us. It is the letting go of this time when we truly feel void of problems. Only by letting go of our problems we will be able to communicate with God, while in the essence of being one with ourselves and finding our true inner self.

Obedience vs Responsibility Essay

Obedience and Responsibility In Stanley Milgram’s, â€Å"The Perils of Obedience†, Milgram states â€Å"The essence of obedience is that a person comes to view himself as the instrument for carrying out another person’s wishes, and he therefore no longer regards himself as responsible for his actions. † (Milgram 6) Through his experiments he shows how we obey commands against our better judgment. It my belief that we are generally obedient as long as someone else assumes responsibility for the outcome. Therefore, this poses the question; would we be fully obedient if we were held responsible for the outcome? Milgram’s experiment consists of three roles: the experimenter, the teacher, and the learner. The learner, who is actually an actor, is strapped to an electrocution device is tested on his ability to remember a word of a pair when he hears the first one again. The teacher, the actual test subject, asks the questions and administers a shock ranging from fifteen volts to four hundred fifty volts for incorrect answers. The experimenter is simply there to guide the teacher and record the findings. The experiment begins by the teacher asking the learner questions. When the learner answers incorrectly, the teacher must correct him and administer a shock starting at the lowest voltage. As the experiment continues the voltages increase and so does the reaction from the learner. What begins as minor discomfort on the learner quickly turns into screams of pain and pleas to be released. The experimenter’s job is to record the reactions of the teacher based on learner’s reactions and how long the teacher will continue to go on with the experiment. The results of the first experiment conducted on a group of Yale undergraduates, showed that about sixty percent of them were fully obedient, even to the maximum voltage. (Milgram 2) A colleague of Milgram’s dismissed the findings stating, â€Å"Yale undergraduates are a highly aggressive bunch who steps on each other’s neck on the slightest provocation. † (Milgram 2) He believed that when the experiment was carried out on â€Å"ordinary† people the results would be much different. The second experiment was conducted on professionals, white-collar workers, unemployed persons, and industrial workers. The results were very much the same as those of the Yale students. One specific experiment involving Fred Prozi, a good natured unemployed fifty year old, shows that once responsibility is placed on someone else we are content with following demands that are given. At one point in the experiment Prozi turns to the experimenter and says, â€Å"You accept all responsibility? (Milgram 4) Once the experimenter agrees Prozi continues and inflicts a 450 volt shock numerous times despite hearing the learners scream of agony and pleas to be released. This shows that once we detach ourselves from the responsibility of the outcome, we will comply with the demands given even if the effects of the demands are harmful, destructive and blatantly clear. In a variation of the experiment, the teacher was not required to pull the lever that shocked the learner; rather they just had to administer the word pair test. This removed even more of the responsibility of the teacher, since they were not actually inflicting pain on the victim. The result of the result of this experiment showed that 37 out of 40 adults continued to the highest level on the shock generator. (Milgram 7) We see this type of behavior in everyday society. People are willing to carry out the demands of others if they feel the demands are not neccassarily their views or actions. An example of this could be someone dismissing someone from a job because their senior boss ordered them to. They may not feel the same way about the employee or the descision to fire them, but they remove any emotional responsibility because they were just following orders. An even better example of this would be that of war in modern society. Since soldiers are given orders to kill by their superiors, they can remove any emotional responsibility because they were simply following orders. Likewise, the person odering the soldier to kill someone removes the responsibility on the superior because they are actually committing the act of murder. Also, many Americans can justify was because we as individuals aren’t actually fighting the war and do not see the effects of the war daily. In conclusion, it is my belief that if we were held personally responsible for the demands ordered by another most people would not comply with those demands. It is easy to put our conscience at ease when we are not responsible for the actions ordered by another, it is not as easy if we were to be held responsible. I believe that Milgram’s article proves this to be true, not just in the experiments he conducted in the article but in modern society as well.

The United States Recent Wars Against Iraq Essay examples

The United States of America fought within the last two decades two major wars against Iraq, which were totally different in their character. On the one hand, in 1990 America conducted Operation Desert Storm to defeat Iraq after its invasion of Kuwait, mainly with traditional also called conventional warfare. On the other hand, Operation Iraqi Freedom (OIF) in 2003, which was after the declared defeat of Saddam Hussein’s military forces a brutal conflict of U.S. forces together with the new government authorities against non-state actors primarily executed through irregular warfare. The economic crisis in 2008 also forced America to reduce its military budget due to a huge national debt, but the global threats remain the same and†¦show more content†¦The NMS highlighted with the description of America’s future force that the human resource, because of its innovation and values, is equally as important as the technological assets, displaying the capabilities, of the U.S. Armed Forces. These definitions and national objectives set the framework for America’s military capabilities in the 21st century. The United States has to maintain the ability to conduct globally irregular and conventional warfare to preserve its status as a superpower and credibility as a reliable partner. Nevertheless, America faced severe constraints for U.S. military forces due to its over $17 trillion national debt and the enacted sequestration. Therefore, a balance and prioritization is necessary to accomplish national strategic objectives, retain military and economic reliability, and solve financial limitations. The portion of conventional warfare was less than 20 percent in the conflicts of the last two centuries. As a result, America should increase its irregular warfare capabilities, which include not only Special Operations Forces (SOF) but also highly trained military personnel. The threats of transnational terrorist organizations like Al-Quaeda a re stillShow MoreRelatedImpact of the Gulf War, September 11th, and the War in Iraq on the U.S. Constitution1083 Words   |  5 Pages The Constitution of the United States is the supreme law of the United States of America. It was completed on September, 1787, with its adoption by the Constitutional Convention in Philadelphia, Pennsylvania, and was later ratified by special conventions in each of the original thirteen states. It created a more unified and defined government in place of what was then a group of free and independent states operating under the Articles of Confederation. During its historyRead MoreEssay on America Should Not Use Military Force in Iraq1357 Words   |  6 Pagesanti-terrorism war in Afghanistan, are we going to fight another war on Iraq? In almost every statement on foreign policy, Bush states his belief on his war against Iraq and depicts Saddam Hussein as â€Å"an evil.† A recent poll showed that â€Å"nearly seven in 10 supported military action to force Saddam Hussein from power (Public Agenda). Before you make your decision, do you think a war after Iraq is justified by International law and US law? Do you know the current situation and the background of Iraq and theRead MoreIt Is Extremely Difficult To Define What Terrorism Is,1204 Words   |  5 Pagesthey attacked in fear. In the years after September 11th 2001 the United States waged a war on Iraq that was described as Operation Iraqi Freedom which was meant to rid Iraq of all weapons of mass destruction and help it rebuild its army. This war ended up not helping Iraq in th e ways that the United States had hoped, instead, the United States’ involvement in Iraq and now Syria has caused a growing distrust in the United States by its own citizens as well as citizens of other countries. OperationRead MoreThe United Kingdom And Iraq During The Invasion Of Iraq1407 Words   |  6 PagesInvasion of Iraq began on 19 March and ended 1 May 2003 with coalition forces the United States and its allies (United Kingdom, Australia and Poland) invading Iraq, called Operation Iraqi Freedom. The United Kingdom Prime Minister at the time, Tony Blair felt that the threat of terrorism from Iraq must be dealt with immediately, with his speech in Texas 2002 saying that the United Kingdom must be prepared to act where weapons of mass destruction and terrorism loom over them. 1 The war ended quicklyRead MoreShould We Have Gone to War in Iraq Persausive Essay768 Words   |  4 Pagesfought in the United States most recent war? This war was called Operation Iraqi Freedo m. Many people have family members that fought in this war, or maybe a neighbor. The Iraq war was started shortly after 9/11 when the United States felt that Iraq leader Saddam Hussein had weapons of Mass Destruction. (WMD’s) With the rumor that Iraq had WMD’s President Bush felt the US military had to go on the offense to assure the safety of the country. With that in mind I agree with going to war in Iraq. Also, SaddamRead MoreThe Realist and Liberalist Perspectives on International Relations and US Policy Stance Toward Iraq1186 Words   |  5 PagesStance Toward Iraq There are two prominent stances in International Relations. The schools of thought are commonly referred to as realist and liberalist. There are various names that they are called, and they can also be split further into subdivisions. However, for the purposes of this question I will just refer to the main schools of thought, and the main aims of both the paradigms. At a first glance at this question, my gut feeling is that the United States aims to achieveRead MoreThe Causes and Effects of the the Iran-Iraq War Essay888 Words   |  4 PagesIran-Iraq War, An Iraqi soldier carrying an AK-47 assault rifle during the Iran-Iraq War. [Credit:  © Jacques Pavlovsky/Corbis](1980–88), prolonged military conflict between Iran and Iraq during the 1980s. Open warfare began on Sept. 22, 1980, when Iraqi armed forces invaded western Iran along the countries’ joint border, though Iraq claimed that the war had begun earlier that month, on September 4, when Iran shelled a number of border posts. Fighting was ended by a 1988 cease-fire, though the resumptionRead MoreThe Global Security And Human Security1544 Words   |  7 Pageshad entered into the Post-Cold War era, traditional conceptions of security had become the global security and human security. The International Government Organizations (IGOs) and United Nations realized that wars and chaos began to be internationalized. And the human security, such as human rights, poverty, and the environment, has received attention gradually by the public. There are many issues that have affected the global security in recent decades. The Iraq war began in 2003, a nd it estimatedRead MoreThe American Response1361 Words   |  6 PagesAmerica’s two most recent wars are the Iraq War and the War on Terror. Both of these wars have accomplished their goals, but come at a great cost. There were quite a few factors in both of these wars that affected international security. First, I will analyze both of the wars and then intertwine them together to show the overall effect they have created on America. Let us look first at the War on Terror. The War on Terror started after the terrorist organization Al-Qaeda attacked America on SeptemberRead MoreThe Iraq War : The United States Invade Iraq1109 Words   |  5 PagesThe United States cannot invade Iraq. After the jarring terrorist attacks on September 11th, the American population’s fear is fueling extremism. After al Qaeda’s hijacking of four planes flown into the World Trade Center and Pentagon, we must act rationally. 3,000 civilians have died. In order to combat terrorism, we must rely on the facts, and prevent the population from being misguided and having irrational thoughts. Neither American interests nor principles are served by forcing regime change