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infection controlinfection control
infection controlinfection control

... Yeasts and molds are two common forms Antifungal medications used for treatment ...
Review on Serologic Diagnosis of Syphilis
Review on Serologic Diagnosis of Syphilis

... biological false positive reactions are common in nontreponemal serologic test and false negative tests further complicate the issue. The algorithm of syphilis serology is to use a nontreponemal antibody test as a screening tool followed by a confirmatory serologic test of treponemal antibody test l ...
Sleep triggered by an immune response inDrosophilais regulated by
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... were generally monitored for three baseline days and received treatment on the fourth day at one of four different time points in a 12: 12 light: dark (LD) cycle: ZT 0, ZT 6, ZT 12 or ZT 18 (ZT = zeitgeber time, where ZT 0-12 = lights on, and ZT 12-24 = lights off). Sleep was monitored for three day ...
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... Worldwide,  the  heterosexual  route  is  the  most  common  mode  of  sexual  transmission  of   HIV-­‐1  and  women  are  particularly  susceptible  to  this  infection.  After  penetration  of  the   mucosal  epithelium  HIV-­‐1  interacts ...
Genomic and single nucleotide polymorphism analysis of infectious bronchitis coronavirus Celia Abolnik
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... which is where closely-related stains (>95% amino acid identity) also differ (Bijlenga et al., 2004; Farsang et al., 2002). Cavanagh (2007) proposed that these parts of the S1 subunit are very tolerant of amino acid changes, conferring a selective advantage. Recently, the receptorbinding domain of t ...
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Laboratory diagnosis of sexually transmitted infections, including
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... lymph nodes in the area draining the site of SC vaccination. One premature calf bom to an rv vaccinated heifer had mild interstitial pneumonia and disseminated SRB51 infection. No lesions were seen in other calves from IV vaccinated heifers, heifers vaccinated SC with SRB51 or SI9, and neither SRB51 ...
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... 2.Rearing of Commercial Layers  500 day-old pullet chicks will be purchased and reared in a designated poultry house at the Teaching & Research Farm.  These chicks will be randomly separated into four groups (A, B, C and D) each consisting of two replicates designated as 1 and 2 from day-old and a ...
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... agent being present in an animal at the time of importation), exposure (likelihood of spread and establishment if imported) and any adverse consequences likely to follow these events. Risk management is not warranted for disease agents that are exclusively arthropod-borne, mainly through specific ti ...
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press kit - Sanofi Pasteur

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Ecology of prokaryotic viruses - ICM-CSIC

... structure (e.g., tail fibers) and the receptor is accomplished. After adsorption, the cell wall is made penetrable (e.g., by special phage enzymes in the tail or capsid) and the nucleic acid is transported into the cell, whereas the capsid remains outside the cell. Following injection, the genetic ma ...
methicillin-resistant staphyloccus aureus infections
methicillin-resistant staphyloccus aureus infections

... When people think of microorganisms such as bacteria and viruses they usually think of them as foreign “invaders” that cause illnesses. That is certainly true, microorganisms can and do cause diseases and make us sick and a microorganism that causes a disease is called a pathogen. But microorganisms ...
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Hepatitis B



Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) which affects the liver. It can cause both acute and chronic infections. Many people have no symptoms during the initial infection. Some develop a rapid onset of sickness with vomiting, yellowish skin, feeling tired, dark urine and abdominal pain. Often these symptoms last a few weeks and rarely does the initial infection result in death. It may take 30 to 180 days for symptoms to begin. In those who get infected around the time of birth 90% develop chronic hepatitis B while less than 10% of those infected after the age of five do. Most of those with chronic disease have no symptoms; however, cirrhosis and liver cancer may eventually develop. These complications results in the death of 15 to 25% of those with chronic disease.The virus is transmitted by exposure to infectious blood or body fluids. Infection around the time of birth or from contact with other people's blood during childhood is the most frequent method by which hepatitis B is acquired in areas where the disease is common. In areas where the disease is rare, intravenous drug use and sexual intercourse are the most frequent routes of infection. Other risk factors include working in healthcare, blood transfusions, dialysis, living with an infected person, travel in countries where the infection rate is high, and living in an institution. Tattooing and acupuncture led to a significant number of cases in the 1980s; however, this has become less common with improved sterility. The hepatitis B viruses cannot be spread by holding hands, sharing eating utensils, kissing, hugging, coughing, sneezing, or breastfeeding. The infection can be diagnosed 30 to 60 days after exposure. Diagnosis is typically by testing the blood for parts of the virus and for antibodies against the virus. It is one of five known hepatitis viruses: A, B, C, D, and E.The infection has been preventable by vaccination since 1982. Vaccination is recommended by the World Health Organization in the first day of life if possible. Two or three more doses are required at a later time for full effect. This vaccine works about 95% of the time. About 180 countries gave the vaccine as part of national programs as of 2006. It is also recommended that all blood be tested for hepatitis B before transfusion and condoms be used to prevent infection. During an initial infection, care is based on the symptoms that a person has. In those who develop chronic disease antiviral medication such as tenofovir or interferon maybe useful, however these drugs are expensive. Liver transplantation is sometimes used for cirrhosis.About a third of the world population has been infected at one point in their lives, including 240 million to 350 million who have chronic infections. Over 750,000 people die of hepatitis B each year. About 300,000 of these are due to liver cancer. The disease is now only common in East Asia and sub-Saharan Africa where between 5 and 10% of adults have chronic disease. Rates in Europe and North America are less than 1%. It was originally known as serum hepatitis. Research is looking to create foods that contain HBV vaccine. The disease may affect other great apes as well.
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