Group items tagged definition - 7th Grade Research 2014

shared by katelyn dunn on 16 Apr 14 - No Cached

Smallpox is a contagious, disfiguring and often deadly disease that has affected humans for thousands of years. Naturally occurring smallpox was eradicated worldwide by 1980 — the result of an unprecedented global immunization campaign. Stockpiles of smallpox virus have been kept for research purposes. This has led to concerns that smallpox could someday be used as a biological warfare agent. There's no treatment or cure for smallpox. A vaccine can prevent smallpox, but the risk of the vaccine's side effects is too high to currently justify routine vaccination for people at low risk of exposure to the smallpox virus.
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shared by Stefani Hudson on 16 Apr 14 - No Cached

DefinitionBy Mayo Clinic Staff Cholera is a bacterial disease usually spread through contaminated water. Cholera causes severe diarrhea and dehydration. Left untreated, cholera can be fatal in a matter of hours, even in previously healthy people. Modern sewage and water treatment have virtually eliminated cholera in industrialized countries. The last major outbreak in the United States occurred in 1911. But cholera is still present in Africa, Southeast Asia, Haiti and central Mexico. The risk of cholera epidemic is highest when poverty, war or natural disasters force people to live in crowded conditions without adequate sanitation. Cholera is easily treated. Death results from severe dehydration that can be prevented with a simple and inexpensive rehydration solution.
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shared by andrew avila on 21 Apr 14 - No Cached

an infectious bacterial fever with an eruption of red spots on the chest and abdomen and severe intestinal irritation.
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shared by michael huddleston on 21 Apr 14 - No Cached

DefinitionTyphoid fever is an infection that causes diarrhea and a rash -- most commonly due to a type of bacteria called Salmonella typhi (S. typhi).
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Alternative NamesEnteric fever
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Causes, incidence, and risk factorsThe bacteria that cause typhoid fever -- S. typhi -- spread through contaminated food, drink, or water. If you eat or drink something that is contaminated, the bacteria enter your body. They travel into your intestines, and then into your bloodstream, where they can get to your lymph nodes, gallbladder, liver, spleen, and other parts of your body.
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A few people can become carriers of S. typhi and continue to release the bacteria in their stools for years, spreading the disease.Typhoid fever is common in developing countries, but fewer than 400 cases are reported in the U.S. each year. Most cases in the U.S. are brought in from other countries where typhoid fever is common.
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shared by jacklynn jackson on 28 Apr 14 - No Cached

Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs. Influenza, commonly called the flu, is not the same as the stomach "flu" viruses that cause diarrhea and vomiting.
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Influenza and its complications can be deadly. People at higher risk of developing flu complications include:
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Young children Older adults Pregnant women People with weakened immune systems People who have chronic illnesses
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shared by michael huddleston on 29 Apr 14 - No Cached

shared by jace givens on 21 Apr 14 - No Cached

Fever Headache Muscle pain Backache Chills Loss of appetite Nausea and/or vomiting
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High fever Abdominal pain Bleeding from the gums, nose, eyes, and/or stomach Vomit that appears black due to blood content Low blood pressure Liver failure, which may lead to jaundice Kidney failure Confusion Seizure Coma
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SymptomsYellow fever symptoms appear within a week after a person is bitten by an infected mosquito. Typically, acute phase symptoms will persist for 3 to 4 days, and then disappear. A small percentage of people progress into the toxic phase. The toxic phase symptoms begin within 24 hours of the end of the acute phase. Recovery from yellow fever provides lifetime immunity from the disease.
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DefinitionYellow fever is a disease carried by female mosquitoes. The species of mosquito that carry yellow fever are native to sub-Saharan Africa and South America, but can also be found in other areas. Although it may be rare in developed countries, yellow fever is endemic in impoverished areas where people cannot afford to get vaccinated.
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Prevention Vaccination is the best way to prevent yellow fever. The yellow fever vaccine is recommended for people aged 9 months to 59 years who are traveling to or living in areas where the disease is present. Your doctor will help decide if the vaccine is right for you.
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