Results 191 to 200 of about 13,775,962 (220)

Occult hepatitis B virus infection

Transfusion Clinique et Biologique, 2004
The detection of HBV DNA without HBsAg with or without the presence of HBV antibodies outside the acute phase window period defines occult HBV infection. This condition has been described in hepatocellular carcinoma (HCC), chronic hepatitis B, healthy HBV carriage and recovered infection, chronic hepatitis C and individuals without serological markers ...
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Occult Hepatitis B in HIV-Infected Patients

JAIDS Journal of Acquired Immune Deficiency Syndromes, 2004
Prevalence of hepatitis B virus (HBV) markers, including occult HBV, has not been described in diverse cohorts among HIV-infected patients. The objective of this study was to assess prevalence and significance of active and occult HBV infection in an HIV-positive US cohort. A random sample was taken from 2 prospective multicenter treatment intervention
Norah J, Shire, Susan D, Rouster, Natasa, Rajicic, Kenneth E, Sherman   +3 more
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Occult hepatitis B virus and hepatitis C virus infections

Reviews in Medical Virology, 2008
AbstractOccult HBV infection is a well‐recognised clinical entity characterised by the detection of HBV‐DNA in serum and/or in liver in the absence of detectable hepatitis B surface antigen (HBsAg). Occult HBV infection has been described not only in patients who have resolved an acute or chronic HBV infection but also in patients without any ...
Vicente, Carreño, Javier, Bartolomé, Inmaculada, Castillo, Juan Antonio, Quiroga   +3 more
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Hepatitis D virus infection in patients with hepatitis B virus occult infection

European Journal of Gastroenterology & Hepatology, 2019
Fil: Oubiña, Jose Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones en Microbiología y Parasitología Médica. Universidad de Buenos Aires. Facultad de Medicina.
Oubiña, Jose Raul, Delfino, Cecilia María, Mathet, Veronica Lidia   +2 more
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Occult hepatitis B virus infection in patients with leprosy

Journal of Medical Virology, 2018
Leprosy patients may present with immune system impairment and have a higher hepatitis B virus (HBV) seroprevalence, justifying the investigation of occult HBV infection in these individuals. The aim of this study was to verify the frequency and the clinical factors associated with occult HBV infection in leprosy patients.
Joanne E. F. Costa, Viviane M. S. Morais, Juliana P. Gonçales, Ana Anizia D. P. Medeiros, Haline Barroso, Adriana P. Compri, Lucila Fukasawa, Regina C. Moreira, Maria Rosângela C. D. Coêlho   +8 more
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Occult Hepatitis B Virus Infection: Detection and Significance

Digestive Diseases, 2010
The Taormina Consensus Conference defined ‘occult hepatitis B virus (HBV) infection’ (OBI) as the ‘presence of HBV DNA in the liver of individuals testing HBsAg-negative with currently available assays’. Most occult is the so-called ‘window period’ after exposure before HBV DNA appears in the blood. We identified two blood donors whose donations tested
Wolfram H, Gerlich, Corinna, Bremer, Mona, Saniewski, Christian G, Schüttler, Ulrike C, Wend, Wulf R, Willems, Dieter, Glebe   +6 more
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Occult hepatitis B virus infection with positive hepatitis B e antigen

Clinica Chimica Acta, 2015
Hepatitis B e antigen (HBeAg) is a marker to indicate active replication of hepatitis B virus (HBV). Occult HBV infection (OBI), referred to persistence of HBV DNA in serum and/or liver without detectable serum hepatitis B surface (HBsAg), usually has low HBV DNA levels.
Zhenge, Han, Yong, Liu, Jinshun, Pan, Yongchun, Bi, Jingli, Liu, Yi-Hua, Zhou   +5 more
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Occult hepatitis B virus infection: implications in transfusion

Vox Sanguinis, 2004
Hepatitis B virus (HBV) presents a higher residual risk of transmission by transfusion than hepatitis C virus (HCV) or human immunodeficiency virus (HIV). While most infectious blood units are removed by screening for hepatitis B surface antigen (HBsAg), there is clear evidence that transmission by HBsAg‐negative components occurs, in part, during the ...
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Occult Hepatitis B is not Necessarily an Infection

Journal of Clinical Gastroenterology, 2008
BAYRAKTAR, YUSUF, Shorbagi, Ali
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[Occult hepatitis B virus infection].

Virologie (Montrouge, France)
Occult hepatitis B virus (HBV) infection is a peculiar form of chronic viral infection identified since the early 80's and can be defined as the presence of HBV DNA in the serum and/or in the liver tissue of patients negative for the HBV surface antigen (HBsAg) using usual serological tests.
A, Vallet-Pichard, S, Pol
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