نتایج جستجو برای: hepatitis a virus

تعداد نتایج: 13599917  

Background: Hepatitis C virus (HCV) is a blood-borne virus. It is a major global public health problem and can cause both acute and chronic hepatitis. The aim of this study was to report the epidemiological features of HCV infection and risk factors based on the data from Azar Cohort, East Azerbaijan province, Iran. Methods: The population of this study comprised the people in the age range of...

Journal: :Clinical and diagnostic laboratory immunology 2003
Licel de los Angeles Rodríguez Lay Osmany Larralde Díaz Raiza Martínez Casanueva Aidonis Gutiérrez Moreno

The main goal of this study was to test the feasibility of using urine for diagnosing hepatitis A virus (HAV) infections. A correlation of 90.78% between the test results of urine and serum samples was obtained. Four outbreaks of hepatitis A were confirmed by testing only urine samples. The levels of anti-HAV immunoglobulin M (IgM) antibodies in urine samples remained stable during 6 months of ...

Journal: :Japanese journal of infectious diseases 2015
Meng-Che Wu Chia-Hsing Sung Yu-Chuan Chang Chi-Lin Ho Chih-Chiang Wu Kuei-Hua Wu Chun-Yi Lee Kuen-Der Yang

Helicobacter pylori and hepatitis A virus (HAV) are thought to have similar routes of transmission and epidemiology. This study investigated the seroprevalence of these 2 pathogens among children in rural, central Taiwan. Serum samples were collected from 856 children between 2010 and 2012 and levels of anti-HAV and anti-H. pylori antibodies were measured by ELISA. Questionnaires were used to i...

Journal: :Indian journal of medical microbiology 2009
M Ahmed S U Munshi A Nessa M S Ullah S Tabassum M N Islam

Serum samples from 465 subjects aged between 1 and 25 years were tested for antibody against hepatitis A virus (HAV) [anti-HAV IgG and IgM] to determine the seroprevalence of HAV antibody and do a cost-benefit analysis for decision making about vaccination against HAV among the general population of Bangladesh. A high prevalence of anti-HAV (74.8%) was observed in the study population; the whol...

Journal: :Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 2014
B Guzman-Herrador L Jensvoll M Einoder-Moreno H Lange S Myking K Nygard K Stene-Johansen L Vold

On 7 March 2014, an increase in hepatitis A virus (HAV) infections was identified in Norway. As of 12 April, 19 cases of HAV infection with a virus strain identical to an ongoing European outbreak have been identified. Six probable cases are currently under investigation. On 11 April, a frozen berry mix cake imported from another European country was found as the likely source of the outbreak; ...

Journal: :archives of clinical infectious diseases 0
helia azimi infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, faculty of biological sciences, shahid beheshti university, tehran, ir iran maryam vaezjalali infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2123872556, fax: +98-2122439972

conclusions hepatitis b core antibody immunoglobulin m positivity is different in healthy blood donors of different countries according to the prevalence of chronic hepatitis b and its vaccination. based on the current study findings, all positive samples of hepatitis b core antibody in iranian blood banks should be considered as candidates for occult hepatitis b not just the window period infe...

Journal: :iranian journal of public health 0
s aminiafshar m alimagham l gachkar f yousefi z attarchi

type e hepatitis is caused by an unclassified virus producing acute self-limited hepatitis in different parts of the world. in order to estimate the prevalence of hepatitis e virus seropositivity in tehran blood donors, a cross– sectional study was performed by the enzyme immunoassay method from 2003 to 2004 in a group of 90 blood donors. we noticed that 7 cases (7.8%) were anti-hev ab positive...

Journal: :iranian journal of basic medical sciences 0
mehdi norouzi iranian national institute for genetic engineering and biotechnology, tehran, iran seyed ali ghorashi iranian national institute for genetic engineering and biotechnology, tehran, iran behrooz ataei infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran majid yaran infectious diseases and tropical medicine research center, isfahan university of medical sciences, isfahan, iran reza malekzadeh digestive disease research center, shariati hospital, tehran, iran seyed moayyed alavian baqiyatallah university of medical sciences, baqiyatallah research centre for gastroenterology and liver disease, tehran, iran

objective(s) the aim of this study was to characterize the hepatitis b virus surface protein genotypes and sequence variations among hepatitis b virus surface antigen (hbsag) positive chronic patients in hormozgan province, south of iran. materials and methods a total of 8 patients enrolled in this study. the surface gene was amplified and directly sequenced. genotypes and nucleotide/amino acid...

Journal: :international journal of occupational and environment medicine 0
m bahadori tehran university of medical sciences, tehran g sadigh

occupational exposure to blood and body fluids is an important hazard for health care workers, which places them at a high risk for blood-borne infections including hepatitis b virus, hepatitis c virus and human immunodeficiency virus and results in psychological and emotional stresses. several preventive measures have been proposed including pre-exposure ( e.g. , education, use of standard pre...

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