Viruses : Viruses And Bacteria

Take a good look. These are the effects of just some of dozens of infectious diseases we are dealing with today. Pretty gross isn’t it? Well here is the good news. These diseases are preventable. With the medical achievement of vaccinations, most viral infections have been significantly reduced if not completely eradicated. Everyone should get their vaccinations in order to protect both themselves and the people around them.

Provide some examples of sources of infection for novel diseases, including the mode of transmission for WNV. Why is this concern?

Oldstone begins by explaining the study of viruses, virology, and its importance in understanding diseases. In informing the reader of what the study of viruses is, he establishes what variolation and immunization are and the role they play in keeping the public safe from what can be very serious ailments. After explaining the study itself, Oldstone

The pandemic struck the world and infected 1/3 of earth’s human population, killing over 50 million humans. The world’s top doctors have never witnessed anything of this killing magnitude besides the bubonic plague of 1348 but the transmissibility is of nothing they’ve ever seen in their lifetime or of recorded history. People abruptly became aware of the importance of health, and need of medicine and cleanliness.

The mutation of existing viruses, the spread of existing viruses from one host species to another, and the dissemination of a viral disease from a small, isolated population that can lead to widespread epidemics.

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

Worldwide, infectious diseases kill millions of people each year. In fact, they are the leading killer of children and cause 16% of all global

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

An ‘emerging’ disease is one that is speedily increasing in frequency or distribution. This expression not only circumscribes the diseases corresponding with previously unknown agents, but additional known diseases that are ‘re-emerging’, as well. What is it that provokes disease emergence? Epidemiological principles profess that disease is multi-factorial. That is, in inclusion to the existence of the infectious agent, additional factors, such as the agent, host, and/or the environment are all generally imperative for infection and disease to occur. But who would have concluded that one of the most menacing viral infections would result from a mammal? The Nipah Virus Infection (NiV) is a known emerging infection, targeting the public health

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.

Disease has ravaged the Earth for millions, if not billions, of years. It has existed since the formation of multicellular organisms on the Earth. Disease arises in many different forms, including parasitic, mutational, viral, bacterial, and countless more. All life on planet Earth is susceptible to infection of a disease. Part of what makes numerous diseases extraordinarily dangerous is the copious number of methods transmission can occur. Diseases can become airborne, transmitted through consumed sustenance, inherited from previous generations, and various diseases can spontaneously appear out of thin air. New forms of disease are being generated all the time. A major disease devastating boreal forests across the North American continent is White Nose Syndrome.

“The rodents spread the plague from China to Europe and it hit Britain in 1348.”(Bates, Claire) So if the world is so populated more people will be homeless, and the disease could spread easier wiping out millions. The black death was also spread by people getting bites from infected rats, the disease travels through the body into the lungs, and when the person coughs or sneezes, the disease is transmitted into the air and can infect people who breath in that same air. So if the world becomes too over populated and there aren’t enough houses people will be living on the streets where disease could spread easier and faster just like the black death. “Indirect contact infections spread when an infected person sneezes or coughs, sending infectious droplets into the air.”(DIRECT…) So if everyone if coughing and sneezing then anyone who breathes in that contaminated air could get the disease. “Last year, it called dengue the “most rapidly spreading mosquito-borne viral disease” in the world—faster than West Nile virus or malaria.”(The deadly…) If this disease was to break out when the world is overpopulated a disease could take out almost half the entire human race.There are hundreds of diseases that can be spread by animals, some examples are all types of Influenza, Bubonic Plague, zoonotic diseases, HIV/AIDS, Ebola, and Polio. One disease is the Zika virus, it is spread by mosquito bites who bite women and when if the infected women gets pregnant the Zika virus transfers the virus to the child, once the child is born the child could be born with a fatal brain defect. When the world becomes more populated more people could get bit with more mosquitos and get the Zika virus and a whole new generation of kids could be born with a brain

An invisible organism enters your body. It penetrates into your tissues and then takes over the machinery in your own cells to make more copies of itself. This tiny infiltrator works silently, producing thousands of these clones that fill up the cell and cause it to explode. The clones mercilessly continue the process of invading, taking over and destroying cells. The result might be a minor inconvenience to you as the host, or it could result in a slow or rapid death. It depends only on which variant of this unwanted infiltrator overcomes your body’s defenses. There are cures to wipe out some types of these invisible intruders, but others are so difficult to eradicate or so readily adaptable, that the world’s greatest scientists

Infectious disease is considered an ever evolving issue world-wide. A number of health officials and idealists believed that the threat of infectious disease would have been eradicated by now.1 Infectious disease remains the leading cause of death across the globe and the third leading cause of death in the United States.2 Within the scope of infectious disease, the most common cause of illness is viral respiratory tract infections, also referred to as VRTI.3 Recently, a new strain of virus related to the Severe Acute Respiratory Syndrome commonly referred to as SARS has been identified.4,5 The Middle East Respiratory Syndrome is a viral infection that affects the respiratory tract in humans and has recently been discovered in a small

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.