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Pandemic Flu vs. Zika Virus – Comparison and Context
Pandemic Flu vs. Zika Virus – Comparison and Context

A4P 41 PRSSV :731 Beef Action For Profit No13
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... infectious virions beyond 24 hours," Bearden said. The virus was less stable at 40-percent relative humidity, which is more common in indoor environments. In the first two hours, 0.01 percent of the virus remained, showing a 99.9-percent reduction in the number of infectious viruses. Researchers wer ...
Management of common bacterial skin infections
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... infectious, spreading to siblings and classmates. It most commonly involves the face and exposed sites. The children are usually otherwise healthy. It usually starts with some small vesicles that rupture and develop a golden crust. This can spread locally after a few days. Satellite lesions occur ar ...
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... Leptospirosis: The Leptospira bacteria are spread by infected urine or contaminated water (oral ingestion). Droplets of urine from infected cows can infect normal cows after contact with the eye or mucous membranes of the nose or mouth. Campylobacteriosis: The disease is spread from an infected bull ...
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... and Paddock provide scholarly insight into the history of public health epidemiology of an American infectious disease.1 The time frame spans from the period preceding knowledge of the concept of infectious disease and of the rickettsial cause of RMSF to the contemporary era.2 Their review of the pr ...
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... Signs and Symptoms Rocky Mountain spotted fever begins suddenly with a headache, pains in the muscles and joints, and fever. Within a few days of infection, a rash characterized by faint pink spots appears on the palms, wrists, ankles, and soles. This rash, caused by blood leaking from damaged vesse ...
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... animal to animal. Mortality rates from this disease are very low, from 1% to 3%, though it is an incapacitating agent because it is highly infectious when delivered through inhalation. As little as one organism can cause clinical symptoms. The usual infectious dose is considered to be 10 organisms t ...
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... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
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the texas guide to school health programs
the texas guide to school health programs

... hands to other areas of the skin. Impetigo most commonly occurs on the face. The red, rounded, and “oozing” rash may have a flat, honey-colored crust and may be itchy. Impetigo sometimes causes blisters that break easily leaving raw, “oozing” skin exposed. In rare cases, impetigo caused by strep bac ...
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Chickenpox



Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV). The disease results in a characteristic skin rash that forms small, itchy blisters, which eventually scab over. It usually starts on the face, chest, and back and then spreads to the rest of the body. Other symptoms may include fever, feeling tired, and headaches. Symptoms usually last five to ten days. Complications may occasionally include pneumonia, inflammation of the brain, or bacterial infections of the skin among others. The disease is often more severe in adults than children. Symptoms begin ten to twenty one days after exposure to the virus.Chickenpox is an airborne disease which spreads easily through the coughs and sneezes of an infected person. It may be spread from one to two days before the rash appears until all lesions have crusted over. It may also spread through contact with the blisters. Those with shingles may spread chickenpox to those who are not immune through contact with the blisters. The disease can usually be diagnosed based on the presenting symptom; however, in unusual cases may be confirmed by polymerase chain reaction (PCR) testing of the blister fluid or scabs. Testing for antibodies may be done to determine if a person is or is not immune. People usually only get the disease once.The varicella vaccine has resulted in a decrease in the number of cases and complications from the disease. It protects about 70 to 90 percent of people from disease with a greater benefit for severe disease. Routine immunization of children is recommended in many countries. Immunization within three days of exposure may improve outcomes in children. Treatment of those infected may include calamine lotion to help with itching, keeping the fingernails short to decrease injury from scratching, and the use of paracetamol (acetaminophen) to help with fevers. For those at increased risk of complications antiviral medication such as aciclovir are recommended.Chickenpox occurs in all parts of the world. Before routine immunization the number of cases occurring each year was similar to the number of people born. Since immunization the number of infections in the United States has decreased nearly 90%. In 2013 chickenpox resulted in 7,000 deaths globally – down from 8,900 in 1990. Death occurs in about 1 per 60,000 cases. Chickenpox was not separated from smallpox until the late 19th century. In 1888 its connection to shingles was determined. The first documented use of the term chicken pox was in 1658. Various explanations have been suggested for the use of ""chicken"" in the name, one being the relative mildness of the disease.
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