Anthrax is a bacterial disease instigated by the endospore-forming, rod-shaped bacterium Bacillus anthracis . Anthrax itself comes from the Greek word for coal, nthrax, attributable to the coal colored lesions that oftentimes develop on victims’ dermis. Though the sporadic disease most commonly affects animals in agricultural regions, it can sometimes infect humans and cause serious illness as well as both hypodermic and internal infections that can prove fatal to those infected.
German microbiologist and physician Dr. Robert Koch (1843-1910) successfully isolated Bacillus anthracis in 1875 by growing the organism in a pure culture and identifying the bacteria’s ability to form endospores, a resistant type of spore that develops in some bacteria cells. Furthermore, Koch produced experimental anthrax by injecting the disease into animals. From his research and experimentation, Koch was able to discern the life cycle of anthrax and develop the Koch postulates, which identified the causative relationship between microorganisms and diseases. The proof outlined in his discoveries in the late 1800s allowed for later scientists to develop a comprehensive Germ Theory, a notion which states that certain microorganisms present in the body can in fact cause diseases. Long before the formal discovery of the disease, anthrax had originated in 1250 BC, where it is thought to have developed in Mesopotamia and Ancient Egypt, Rome, and Greece. As the disease was in all likelihood much more dangerous in olden times due to the lack of an ability to control the spread of the bacteria, some theories suggest that anthrax contributed to the fall of the Roman Empire. It was only in the 1752 and 1769 that the first clinical observations of cutaneous...
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... an official stop in February 19th, 2010. Independent scientists convened on February 15, 2011 to conclude that though Irvins could very well have been the perpetrator, there was no direct evidence that could prove as such. In total, 22 people had become infected and 5 had perished from the Ames strain of anthrax. However, 10,000 people were put at risk of contracting the disease.
Bacillus anthracis, is not only a dangerous bacteria that can cause a fatal disease, but is also one that can be manipulated to terrorist’ advantage to cause widespread and uncontrollable terror to entire societies. Qualitative analysis comes into play in consideration of the prevention of the spread of the disease, as proper and rapid identification of anthrax can drastically improve the prospects of halting contamination, as efficient diagnosis is directly correlated to prevention.
The Demon in the Freezer is divided into eight sections. It begins with the upsetting details surrounding the sudden death of Robert Stevens, just three weeks after the attacks of September 11, 2001. An autopsy showed Mr. Stevens died of inhalation anthrax. Subsequent anthrax illnesses among people exposed to letters laced with anthrax frightened the nation. Some thought the letters might also contain smallpox, but fortunately this was not the case. “There had been only eighteen cases of inhalation anthrax in the past hundred years in the United States, and the last reported case had been twenty-three years earlier” (5). It is no wonder that people became alarmed at the threat of a major anthrax outbreak.
The 2001 anthrax attacks was one of the worst bio-weapon attacks on the US in history. The attacks where done through the mail. The anthrax was placed in envelopes with a letter and mailed from various locations to different people and organizations. The anthrax filled letters ended up killing 5 people, causing 17 to become sick and exposing anthrax it is believed to as many as 30,000 people. During the mail process spores of anthrax from the letters escaped and got on mailroom equipment exposing postal employees. If a person was exposed to enough anthrax and developed symptoms they typically died in a few days. Postal workers during the attacks where told that anthrax will appear as a white powder t...
Linkous, J. (2004). More details on new anthrax search. Retrieved Oct. 06, 2005, from CBS News Web site: http://www.cbsnews.com/stories/2004/10/05/national/main647441.shtml.
Tuberculosis or TB is an airborn infection caused by inhaled droplets that contain mycobacterium tuberculosis. When infected, the body will initiate a cell-mediated hypersensitivity response which leads to formation of lesion or cavity and positive reaction to tuberculin skin test (Kaufman, 2011). People who have been infected with mycobacteria will have a positive skin test, but only ones who have active TB will show signs and symtoms. Basic signs and symptoms include low grade fever, cough with hemoptysis, and tachypnea. They may also show pleuristic chest pain, dyspnea, progressive weight loss, fatigue and malaise (Porth, 2011).
On September 18th and the weeks following, a multitude of letters containing the Bacillus Anthracis bacterium were mailed to various New York news stations. Individuals at 5 different stations became ill with similar symptoms that included vomiting and shortness of breath. This began the nationwide panic known as the Amerithrax Investigation. The Amerithrax investigation was said to be the worst biological attacks in all of US History. Three weeks later, on October 9th, two more letters, containing the anthrax bacterium was mailed to two Democratic senators. In all of the 7 attacks, over 22 people developed infections, over half being life-threatening. The letters themselves confused federal investigators. In the sets of letters addressed to the media, certain T’s and A’s were bolded. When added together, the groups of letters formed 3 codons that corresponded to 3 amino acids. These amino acids pointed federal investigators towards a possible culprit, Bruce Edwards Ivins, a scientist for the US government in Frederick, Maryland.
Bacillus anthracis or anthrax is bacteria that infect thousands of people a year worldwide. Mostly found in the hinds and hair of grazing animals like cattle and sheep, the bacteria can stay dormant for years until contacted. Contact can occur through broken skin, eating infected meat, or inhaling infected dust from hides through the mouth or nostrils. Normal contact through the skin begins forming malignant skin ulcers that are dark black in appearance. If left untreated, the blisters lead to blood poisoning and eventually death. Eating contaminated meat not fully cooked can cause intestinal infection also leading to death. Surprisingly, many people survive contact of the skin and very few cases of intestinal infection exist. However, inhalation of infected dust or spores are much more deadly because the symptoms resemble a common cold...
The aim of this paper is to take an in-depth look at the emotion of disgust, and explore what role (if any) it should play in morality. The issue of what role disgust should have in morality is disputed by advocates and skeptics. In what follows, I will outline this dispute and show the arguments each side makes. Following that, I will take a look into Kelly’s view which takes the skeptical stance, but differs in how he comes to take that stance. Next I will show how Kelly uses his view to disprove the disgust advocates’ arguments. Finally, I will illustrate a promising line of argument that may give hope to the disgust advocates, in light of Kelly’s powerful skeptical stance.
Louis Pasteur, in 1881, discovered the anthrax vaccine. Anthrax is an infection caused by many bacteria cells called “Bacillus”. These bacteria make “spores” which have a protective shell. This disease is most common in farm animals. They live in soil, and affect domestic a...
Bacterial resistance to antibiotics has presented many problems in our society, including an increased chance of fatality due to infections that could have otherwise been treated with success. Antibiotics are used to treat bacterial infections, but overexposure to these drugs give the bacteria more opportunities to mutate, forming resistant strains. Through natural selection, those few mutated bacteria are able to survive treatments of antibiotics and then pass on their genes to other bacterial cells through lateral gene transfer (Zhaxybayeva, 2011). Once resistance builds in one patient, it is possible for the strain to be transmitted to others through improper hygiene and failure to isolate patients in hospitals.
Anthrax is a very real and dangerous threat to all people who come in contact with it. The bacterial infection is caused by the bacteriaium Bacillus anthracis. Anthrax is divided into three categories all are contracted in different ways. The first type is called Cutaneous Anthrax; this is where anthrax spores make contact with the skin. If there is a cut or a lesion then a person can be infected. Cutaneous Anthrax is the most common way to get anthrax, but is also the least lethal. The second type of anthrax is called Pulmonary Anthrax this is where a person inhales the spores of anthrax directly into the lungs. If this type of anthrax is left untreated it could lead to death. The third type of anthrax is called Gastrointestinal Anthrax, this form results from eating meat from animals that have been infected with the anthrax bacteria. This causes the intestinal tract to become infected and this from is almost always fatal. This particular mode of anthrax has never been seen in the United States.
A remarkable breakthrough in medicine occurred in the late 1800s through the work of Louis Pasteur. Pasteur's experiments showed that bacteria reproduce like other living things and travel from place to place. Using the results of his findings, he developed pasteurization, which is the process of heating liquids to kill bacteria and prevent fermentation. He also produced an anthrax vaccine as well as a way to weaken the rabies virus. After studying Pasteur's work, Joseph Lister developed antisepsis, which is the process of killing disease-causing germs. In 1865 before an operation, he cleansed a leg wound first with carbolic acid, and performed the surgery with sterilized (by heat) instruments. The wound healed, and the patient survived. Prior to surgery, the patient would've needed an amputation. However, by incorporating these antiseptic procedures in all of his surgeries, he decreased postoperative deaths. The use of antiseptics eventually helped reduce bacterial infection not only in surgery but also in childbirth and in the treatment of battle wounds. Another man that made discoveries that reinforced those of Pasteur's was Robert Koch. Robert Koch isolated the germ that causes tuberculosis, identified the germ responsible for Asiatic cholera, and developed sanitary measures to prevent disease. (1)
Koch created four guidelines to determine the causal agents of disease in humans, animals, and plants. Koch proved that a disease-causing agent could be transferred from one organism to another and create the same illness. Isolation of pure cultures and the introduction of the disease-causing agent to a healthy organism will transmit the disease and infect the inoculated organism. Koch’s four guidelines by which one must follow to transmit a disease from an infected organism to a healthy one are as followed:
Asthma is a disease that currently has no cure and can only be controlled and managed through different treatment methods. If asthma is treated well it can prevent the flare up of symptoms such as coughing, diminish the dependence on quick relief medication, and help to minimize asthma attacks. One of the key factors to successful treatment of asthma is the creation of an asthma action plan with the help of a doctor that outlines medications and other tasks to help control the patient’s asthma ("How Is Asthma Treated and Controlled?"). The amount of treatment changes based on the severity of the asthma when it is first diagnosed and may be the dosage may be increased or decreased depending on how under control the patient’s asthma is. One of the main ways that asthma can be controlled is by becoming aware of the things that trigger attacks. For instance staying away from allergens such as pollen, animal fur, and air pollution can help minimize and manage the symptoms associated with asthma. Also if it is not possible to avoid the allergens that cause a patient’s asthma to flare up, they may need to see an allergist. These health professionals can help diagnosis what may need to be done in other forms of treatment such as allergy shots that can help decrease the severity of the asthma ("How Is Asthma Treated and Controlled?").
It all started because Great Britain was afraid that Germany and Japan had a great advantage in biological technology in comparison to them. They were testing to see the range of spread of the anthrax spores. Great Britain tested its weapons on the coast of the Island of Gruinard in Scotland were they thought it was far enough from they coast so it would not contaminate or hurt the mainland. In the year of 1943 throughout many experiments that were conducted it was proven that sheep and cattle were affected with anthrax. The British government thought of decontaminating the island that that meant that they had to brushfire they entire island to kill all of th...
Syphilis is a sexually transmitting infection caused by Treonema pallidum, a gram negative, and anaerobic spirochete bacteria 1. Syphilis is thought to have been brought to Europe by Columbus and his sailors in the 1500’s 1. The disease is characterized by four different stages with varying symptoms depending on the stage that the disease is in1. Often syphilis is presented with another sexually transmitted infection such as chlamydia. Public education regarding safe sex is important for the prevention of this sexually transmitted infection.