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Host-Microbe Relationships and Disease
Host-Microbe Relationships and Disease

... • Not everything in biology can be neatly classified. There is a gradation from pathogen to opportunist to non-infectious, and what happens depends on the balance of these 3 factors. ...
Eastern Equine Encephalitis Virus Fact Sheet
Eastern Equine Encephalitis Virus Fact Sheet

... usually occur 3 to 10 days after exposure to a mosquito carrying the virus. There is no specific treatment and there is no vaccine for use in people. EEE can also cause serious illness in horses, ratites (flightless birds such as ostriches and emus) and pheasants. There is a vaccine available for ho ...
The Immune System The immune system is the collection of tissues
The Immune System The immune system is the collection of tissues

... which are intended to protect us from various pathogens. We continue to receive boosters for some of these throughout our lives, the best example is the tetanus booster given every 5-10 years. Most people have become keenly aware of the importance of the immune system over the last two decades becau ...
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Acute Viral Encephalitis and Brain abscess:

... USA each year, almost all of which are caused by viruses. ...
Chapter 34 - Bakersfield College
Chapter 34 - Bakersfield College

... You are the nurse caring for an 80-year-old woman with a history of Type 2 diabetes and a SBO (small bowel obstruction). She has been in the hospital for 3 days, prior to that she had been at home and became dehydrated due to her nausea and vomiting that she had for 1 week (her daughter finally conv ...
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Epidemiology_Kyasanur Forest Disease

...  By the bite of infective ticks (nymphal stage)  Humans are dead end in the natural cycle ...
Vaccine Preventable Diseases - Cook County Department of Public
Vaccine Preventable Diseases - Cook County Department of Public

... Signs and Symptoms: A sudden onset of mild fever, malaise and itchy rash progresses to vesicular lesions that last three to four days before scabbing. Incubation Period: Can be 10-21 days, but commonly 13-17 days. Period of Communicability: The disease may be transmitted one to two days before onset ...
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...  The exact cause of an itch is unknown. It is a complex process involving nerves that respond to certain chemicals like histamine that are released in the skin, and the processing of nerve signals in the brain.  Pruritus can be a part of skin diseases, internal disorders, or due to faulty processi ...
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Rotavirus infection is the commonest cause of

... particles in saliva, faeces, urine, milk, and semen before clinical signs appear. Unless eradicated immediately economic losses can be huge. The overall risk of human infection is extremely small. Among the extremely rare documented cases, symptoms have been mild and self-limiting, mainly uncomforta ...
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... Interstitial pneumonia may occur with necrosis of bronchiolar epithelium and may be fatal. The pneumonia is often associated with secondary bacterial invaders: staphylococci, pneumococci, streptococci, and Haemophilus influenzae. ...
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Bloodborne Pathogen Exposure Control Plan

... infected persons. The HBV infection is caused by a specific virus known as Hepatitis B virus (HBV). The incubation period for this virus can be as long as 176 days with an average of 120. The symptoms may include anorexia, malaise, nausea, vomiting, abdominal pain, and jaundice. The disease is alway ...
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Bloodborne Pathogens - School District of Black River Falls

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Infectious Diseases Case Presentation 18 September 2002

... –Use of over-the-counter drugs –Animal contact –Eating unwashed vegetables • One of the cases had a Hx of PICA daily for years before the Dx of GIB CID 2001;32:1448 ...
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... Epidemiologic risk factors within the past 21 days before the onset of symptoms, such as contact with blood or other body fluids or human remains of a patient known to have or suspected to have EVD; residence in—or travel to—an area where EVD transmission is active*; or direct handling of bats or no ...
Fact vs Fiction
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... needles used for injecting steroids) and those used for tattooing  People who have another sexually transmitted disease, such as syphilis, genital herpes, chlamydia, gonorrhea, or bacterial vaginosis are at greater risk for getting HIV during sex with infected partners.  If a woman with HIV is pre ...
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...  Confirmatory test- a highly accurate test used to confirm the results of a reactive ELISA (EIA).  Asymptomatic Stage – A period of time in which no symptoms can be seen  AIDS- opportunistic illness (AIDS-OIs)- infections and other diseases caused by organisms that do not usually produce illness ...
Infection control - Taylorstown Cross Community PreSchool
Infection control - Taylorstown Cross Community PreSchool

... provided with exclusion times for common infections. ...
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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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