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Where does BSE occur?

Bovine Spongiform Encephalopathy (BSE; Mad Cow Disease)
BSE was first observed in Great Britain in April 1985 and was officially diagnosed in 1986. By June 1990, some 14,000 cases were confirmed (out of an estimated population of 10 million cattle) in Great Britain. Since 1986, more than 185,000 cases of BSE have been confirmed in Great Britain. The epidemic peaked in 1992-93 at almost 1,000 new cases per week. Control measures have since reduced incidence of the disease, and currently fewer than 100 new cases are reported per week.
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When and how did BSE in cattle occur?

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BSE has been of great concern since 1986, when it was first reported among cattle in the United Kingdom. At its peak, in January 1993, almost 1,000 new cases per week were identified. The outbreak in the United Kingdom may have started from the feeding of scrapie-contaminated sheep meat-and-bone meal to cattle. Scrapie is a disease of sheep that is related to BSE in cattle.
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US FDA/CFSAN - Commonly Asked Questions About BSE in Product...
BSE in cattle was first reported in 1986 in the United Kingdom (UK). The exact origins of BSE remain uncertain, but it is thought that cattle initially may have become infected when fed feed contaminated with scrapie-infected sheep meat-and-bone meal (MBM). Scrapie is a prion disease in sheep similar to BSE in cattle. The scientific evidence suggests that the U.K. BSE outbreak in cattle then was expanded by feeding BSE-contaminated cattle protein (MBM) to calves.
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How often does it occur?

Frequently Asked Questions About Chronic Wasting Disease
CWD is relatively rare. In Colorado, for example, fewer than 200 cases, mostly in mule deer, have been documented since 1981. In checking hunter-harvested animals, less than 6% of deer and 1% of elk in north-central and northeastern Colorado were found to have CWD. Similar surveillance in southeastern Wyoming also indicated that less than 7% of deer had CWD. Deer and elk checked outside these areas in Colorado and Wyoming did not have CWD.
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What is BSE?

Bovine Spongiform Encephalopathy (BSE; Mad Cow Disease)
Bovine spongiform encephalopathy (BSE) is a disease condition in cattle which is thought to have originated in Great Britain. It occurs in cattle between two and eight years old and is always fatal. The most plausible cause of the disease is a prion, a "self-replicating" protein, rather than a bacterium or virus. BSE causes a portion of the brain to become sponge-like.
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Bovine Spongiform Encephalopathy, Division of Animal Industr...
Bovine Spongiform Encephalopathy (BSE), referred to in the press as Mad Cow Disease, is a degenerative neurological disease of cattle caused by an abnormal protein called a prion. There is strong scientific evidence indicating that BSE can be transmitted to humans causing a variant form of Creutzfeldt-Jakob disease (vCJD). There have been less than 200 human cases reported worldwide. The risk to human health from BSE in the United States is extremely low.
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How does one test for BSE?

Bovine Spongiform Encephalopathy - Mad Cow Disease
Currently, there is no test to detect the disease in a live animal or in muscle meat. Veterinary pathologists confirm BSE by postmortem microscopic examination of brain tissue using sophisticated laboratory techniques, such as a histopathological examination to detect sponge-like changes in the brain tissue and immunohistochemistry to examine the BSE fibrils. These are "gold-standard" tests, and they take more than a week to run.
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What kind of testing does USDA do for BSE?

Bovine Spongiform Encephalopathy (BSE)
USDA's surveillance program for BSE draws samples of high-risk cattle that are then tested for BSE. More information on testing for BSE is available from the USDA's Animal and Plant Health Inspection Service (APHIS). Effective December 30, 2003, carcasses from cattle intended for human food that are sampled and submitted to APHIS for BSE testing will be held until the sample is determined to be negative for BSE.
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Why does it occur?

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Fistula occurs when emergency obstetric care is not available to women who develop complications during childbirth. This is why women living in remote rural areas with little access to medical care are at risk. Before the medical advances of the 20th Century, fistula was quite common in Europe and the United States. Today, fistula is almost unheard of in high-income countries, or in countries where obstetric care is widely available.
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How frequently does it occur in the population?

Information Center - Limb Loss Frequently Asked Questions
In 2007, there are approximately 2 million people with limb loss in the United States (excluding fingers and toes). There are more than 185,000 new amputations preformed each year in this country. The prevalence rate in 1996 was 4.9 per 1,000 persons. The incidence rate was 46.2 per 100,000 persons with dysvascular disease, 5.86 per 100,000 persons secondary to trauma, 0.35 per 100,000 secondary to malignancy of a bone or joint. The birth prevalence of congenital limb deficiency in 1996 was 25.
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How does reproductive cloning occur?

The Reproductive Cloning Network
Reproductive cloning involves removing all the DNA from a female egg, and the injection of DNA from an adult body cell (e.g. a skin cell). The cloning technique is called nuclear transfer, and is very similar to ICSI (intra cytoplasmic sperm injection) a procedure members of International Cloning Consortium have performed numerous times.
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How Does Hearing Loss Occur?

OTG, Inc. - Specializing in Onsite Pulmonary Testing, Mobile...
Sound enters your ears in sound waves. These sound waves hit your eardrum and are converted to pressure changes in the inner ear. This causes special nerves to impulse, which are read by your brain as sound. When these nerves are exposed to a surplus of pressure changes, they may become damaged. You may have noticed that if you listen to loud music for several hours that your ears "ring." This is a Temporary Threshold Shift, or a temporary reduction in hearing.
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What is withdrawal and when does it occur?

Opioids FAQ - That's Poppycock!
Withdrawal occurs when an opiate-addicted individual stops taking opioids. Withdrawal can begin in as little as a few hours after the last dose, but typically starts 12-24 hours after the last dose. A lot of times it begins with sweating, yawning, a runny nose and "teary"-eyes.
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How does natural conception occur?

In-Vitro Fertilization (IVF) - WikiFAQ - Answers to Frequent...
Conception, or fertilization, occurs when the male's sperm meets with the woman's ovum (egg) and successfully penetrates it. This typically takes place in one of the woman's fallopian tubes and the fertilized egg then travels to the uterus and implants in the uterine lining. For pregnancy to take place, fertilization of the egg must be followed by a successful implantation. Only one egg is released for fertilization in each menstrual cycle.
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How does dehydration occur?

FAQ's - Frequently Asked Questions About Diarrhoea, Diarrhea...
The usual causes of dehydration are a lot of diarrhoea and vomiting. Dehydration can also occur if you do not eat or drink much during an illness or if you do not drink enough during or after strenuous exercise. Medications that cause fluid loss to control excess body fluid (diuretics) are a common long-term cause.
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How does vasa previa occur?

Frquently Asked Questions
The theory about this that makes most sense is called Trophotropism. The easiest way to explain this is to make a comparison to a plant. A plant will lean towards the sun to get the light it needs to survive. Since the lower segment of the uterus is not as nourishing as the upper segment, the placenta will grow to reach more nourishing tissue. The placental mass will erode away from the cervix, but the vessels can't. This also explains the velamentous insertion of the cord.
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Why does organ rejection occur?

Organ Transplant, SVCMC; New York NY
Your body has a natural defense system called the immune system that protects you from infection and disease. The immune system defends your body by producing "killer" cells that destroy foreign substances (such as viruses and bacteria). Since the donor organ doesn't match your old organ exactly, your body tries to destroy the transplanted organ. Essentially, a transplant creates a new disease called rejection. Rejection is nature's way of protecting your body.
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How often does it occur? and when would it happen?

Breast implant information, plastic and cosmetic surgery
The post-operative infection rate of surgical placement of a saline implant is estimated at less than 1-2 percent. This rate is the same as the expected infection rate of any "clean" surgery as well and is documented in existing surgical literature. Infection after breast augmentation is unusual but can be a serious problem. Infections usually developed in only one breast. If it were to occur , it most commonly happens within the first 10-14 days after surgery.
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When and where does asbestos exposure occur?

Mesothelioma Frequently Asked Questions (FAQ) - Asbestos.net
Almost everyone is exposed to low levels of asbestos in their lives. It exists in the air at extremely low concentration; levels are highest in urban and industrial areas. These fibers are released into the air during demolition work, remodeling, or other activity in which the material containing asbestos is disturbed. Asbestos may occur in tap water where such water passes through cement pipes containing the substance.
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When does preeclampsia occur in a pregnancy?

Preeclampsia FAQ
Preeclampsia can appear at any time during the pregnancy, delivery and up to six weeks post-partum, though it most frequently occurs in the final trimester and resolves within 48 hours of delivery. Preeclampsia can develop gradually, or come on quite suddenly, even flaring up in a matter of hours, though the signs and symptoms may have been present for months undetected or unnoticed.
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Where does the child abuse occur? And by whom?

Child abuse occur in the place where it is least expected; home, and from adults entrusted for the care of children; parents or guardians. In many cases, if the abuser is not a parent/guardian, s/he is certainly known to the child, especially in the case of sexual abuse.
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How commonly does piles occur?

Piles - Frequently Asked Questions
Piles (hemorrhoids) are common in both men and women. By the age of 50 half of the people develop hemorrhoids to some extent. Although bleeding may occur in some cases, it does not cause any serious problem. But a person suffering from long standing bleeding piles (hemorrhoids) can have anemia. Women usually tend to develop piles (hemorrhoids) during pregnancy because of the pressure of the fetus and hormonal changes, but it is usually a temporary problem and disappears after childbirth.
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How does administratively dissolution occur?

Frequently Asked Questions
In most instances, a corporation is administratively dissolved because it failed to file its annual registration with the Secretary of State. This often occurs because the corporation is "out of business." But it is also very common that the corporation moved its offices, the Secretary of State was not notified of the change, and the corporation's annual registration form was not forwarded to the new address. Many times the annual registration is not filed simply due to an oversight.
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How often does La Niña occur?

Answers to La Niña Frequently asked questions
El Niño and La Niña occur on average every 3 to 5 years. However, in the historical record the interval between events has varied from 2 to 7 years. According to the National Centers for Environmental Prediction, this century's previous La Niñas began in 1903, 1906, 1909, 1916, 1924, 1928, 1938, 1950, 1954, 1964, 1970, 1973, 1975, 1988, and 1995. These events typically continued into the following spring.
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How is BSE spread?

Bovine Spongiform Encephalopathy (BSE; Mad Cow Disease)
There is still much debate in the scientific community regarding how BSE is spread. At the present time, BSE is thought to be spread in tissue from the central nervous system (brain, spinal cord) as well as distal ileum, some of which can be present in meat and bone meal. BSE is not spread by animal-to-animal contact. In other words, an animal infected with BSE cannot infect another animal with which it is penned or pastured.
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Is BSE Contagious?

Bovine Spongiform Encephalopathy, Division of Animal Industr...
No, it's important to note that BSE is not a contagious disease; spread occur through the ingestion of infected material, generally brain or spinal cord tissue.
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