Exploring the Fucntion of the SIR Model

No. The CDC every year has to make an educated guess on what the strain of influence is going to be. Even if 80% of the population was to get vaccinated to create herd immunity there is no way to be certain that it will be that strain of influence for that year (Webby & Webster, 2003).

Infectious epidemics and pandemics have happened all through mankind's history. “They remain the prime cause of death worldwide and will not be conquered during our lifetimes.” The flu of 1918 was one of the deadliest epidemics in history. “It infected an estimated 500 million people worldwide–about one-third of the planet’s population at the time–and killed an estimated 20 million to 50 million victims. More than 25 percent of the U.S. population became sick, and some 675,000 Americans died during the pandemic.” No one knew how the virus spread, there were no antibiotics to fight it, and no flu shots to prevent it. In the final year of World War I, it struck terror in the hearts of people all across Europe and left more death in its wake than the combined military actions of the combatants. “It killed more Americans in a few months than World War I, World War II, the Korean War, and the

Throughout history many different diseases have infected the world. Such diseases consist of measles, mumps, malaria, typhus and yellow fever. Many of these diseases are caused by different things and originated in different countries.

Most diseases begin with what is called "the virgin field"—a scenario in which humans have no natural or man-made immunity to the disease. To see the progress of a disease in a particular community, start by predicting how many sick days will be reported when you run the Kold disease through a medium-sized population, and record your prediction in the data table. In this first run-through, we'll assume that the population does not move around the field; they interact with their neighbors, but do not travel long distances.

With lacking medical knowledge, people never really grasped the concept or the cause of this epidemic; therefore, they did not know what to do to help cure or stop the spread of it. “In spite of only sketchy medical knowledge, the epidemiology of the plague was fully understood by the 18th century. It took many years of research, after the fact, to finally comprehend all the ins

Diseases can cause a devastating effect on both the human body, and also the human population. Throughout several time periods of the present and past, diseases have caused a humongous impact in several society's in different countries around the world. Several large pandemics and epidemics have killed off the population of many species including humans and primates. Wether the time period is in the present or as far back as the Middle Ages, each and every one of these diseases, have had a life threatening outbreak, across several developing countries. Three known diseases have all created a huge conflict on different civilizations, causing different, unanswered questions to arise. A lot of research has gone into each individual disease, to

Throughout history, infectious diseases have impacted communities around the world. Outbreaks of bacteria and viruses in the past have damaged cities and devastated populations. Over the years, new developments in technology have led to advances in medicine and health. The great strides that have been made over the years have helped improve the lives of individuals and have led to a better environment.

Diseases can be preventable and curable but many still manage to devastate on international scales, whether it was during the Middle Ages or today. These illnesses are sometimes underrated in their effects on the human race where symptoms can range from minimal to down-right devastating and painful. No matter where it started, they can bring devastating effects to the surrounding area. When someone wants to know about a disease, they want to know where it came from, it's symptoms, and how it affected the community in which it appeared. The Black Death, Ebola, and the Zika virus are examples of large-scale illnesses that vary in all three of these topics but still managed to threaten humans on a bigger scale than expected. Diseases like the

- death rate, # or % of people who have the disease who actually die from it or complications from it. EX: 25% of the people who caught smallpox died from it

In the early half of the fourteenth century Europe experienced one of the most deadly and disastrous epidemics this world has ever seen. The Black Death or bubonic plague which is caused by the Yersinia pestis is said to half wiped out close to half the population at the time of the outbreak. What is scary is that the same disease has had outbreaks of the plague in both North and South America in recent times but we have not had the same devastating results that we saw in Europe during the fourteenth century. Infectious disease is still the leading cause of death in the world today and as the world becomes more of a "global village" the chances of naturally transmitting diseases is ever growing. In this paper we are going to discuss the factors

In China where the disease originated from, it was estimated that close to ten million innocent lives were lost during the deadly plague. Today, with advancement in technology doctors have special machines and highly equipped laboratory where they carry out daily research on measures of controlling and preventing such kind of diseases. In fact, there exist very few diseases that are incurable in the world in the twenty-first. Those that are incurable, researches are carried out on a daily basis to find cures. During the rea of emperor Mongol, there was no modern medicine, no

There will be a greatly reduced number of illnesses because some pathogens will no longer exist; not only will economic productivity and general wellness of the population rise, the decreased rates of illness will help to lower health insurance costs across the board. Millions of dollars a year in treatment for preventable illness are wasted. These expenses can eliminated entirely if the public is willing to accept the immediate costs of vaccine development and deployment. Additionally, the higher risk of viral genetic mutation that comes with large population has the potential to spike medical expenses and drain resources across the board. With wide scale vaccination development, vaccine deployment, and eventual herd immunity, the overall costs of recovering from illness can be decreased greatly. Resultantly, global insurance costs for the infirm would drop significantly because the entire population will be less at-risk for illness. A decrease in insurance expenses would likely translate to cheaper individual and corporate insurance plans. More affordable insurance could lead to a greater insured population, which would even further decrease medical

In the infectious disease unit, the main focal point consisted of showing the audience how the spread of a major virus may occur in population. In this case, we were presented with two movies: Contagion and 28 Days Later. These movies both displayed an infectious disease, which is spread through animals causing harm to people. A scenario that presented in Contagion seemed to be realistic possibility because a simple transmission of disease from an animal can happen. If the virus is unknown and no vaccine is available, it could certainly cause a lot of harm to a large population of people. Likewise, another possibility was also presented in 28 Days Later, where the viewers see scientist talking about monkey being infected with a virus.

This model helps us to understand how the agent, host and environment coexist with each other in a state of equilibrium or balance and then represents the spread of disease or injury when there is a shift to that equilibrium or balance

The world has experienced a total of four pandemics within the twentieth century. These pandemics, as horrific and deadly as they are, have brought so much more positive advances to our health care system and how we prepare for biological threats. Although we are in the twenty-first century and we have advanced so far in healthcare, there is still the possibility of a deadly pandemic.