[PDF] Top 20 Hepatitis B surface antigen variants in voluntary blood donors in Nanjing, China
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Hepatitis B surface antigen variants in voluntary blood donors in Nanjing, China
... To explore the mutations affecting the antigenicity of HBsAg, MHR within the major antigenic alpha determi- nant were analyzed. In 32 sequences of genotype B cases, there were 21 samples (65.6%, 21/32) with ... See full document
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Prevalence of hepatitis B surface antigen (HBsAg) in a blood donor population born prior to and after implementation of universal HBV vaccination in Shenzhen, China
... (blood donors of 18 – 22) during the ramp up of vaccination compliance from 30 to 70 %, the expected HBsAg rate is predicted to decline from ...in China and Taiwan, re- spectively, the prevalence of ... See full document
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The current incidence, prevalence, and residual risk of hepatitis B viral infections among voluntary blood donors in China
... for Blood Centers” issued by the Chinese Ministry of Health on December 31, 2011 [12], all six blood centers had the same approach for blood donor screening, requiring all blood donors ... See full document
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Prediction of conformational changes by single mutation in the hepatitis B virus surface antigen (HBsAg) identified in HBsAg negative blood donors
... HBsAg variants (T123A, M133L, and T143M) found in Indone- sian blood donor samples with undetectable HBsAg revealed that T143M substitution altered the antigeni- city most significantly compared to the ... See full document
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Characterization of Occult Hepatitis B Virus Infection from Blood Donors in China
... occult hepatitis B virus (HBV) infection (OBI) of genotypes B and C prevalent in China have not been extensively ...Chinese blood donors was based on clinical and serological ... See full document
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Seroprevalence of hepatitis B e antigen (HBe antigen) and B core antibodies (IgG anti HBcore and IgM anti HBcore) among hepatitis B surface antigen positive blood donors at a Tertiary Centre in Nigeria
... Chronic hepatitis is characterized by either the presence or absence of ...HBV variants with a mu- tation in the core promoter or the pre core region of the HBV genome therefore affecting production of ... See full document
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Molecular Characteristics of Occult Hepatitis B Virus from Blood Donors in Southeast China
... the donors with OBIs was 30 years; and they had normal ALT levels, undetectable HBeAg, and very low viral ...from donors with OBIs than in strains from HBsAg ⫹ ...in donors with OBIs (P ⬍ ...with ... See full document
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Detection of hepatitis B virus DNA among accepted blood donors in Nanjing, China
... viral variants carrying mutant HBsAg that are not recognized by specific antibo- dies used in assays for HBsAg [29-32] and low level expression of HBV genes ...other donors, yet their HBV DNA levels were ... See full document
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Hepatitis B surface gene variants isolated from blood donors with overt and occult HBV infection in north eastern Egypt
... HBsAg-positive blood donors and in 50 % of occult ...HBsAg variants among random chronic carriers with HBV genotype D varied between 15 % in Morocco and ...HBsAg-positive blood donors ... See full document
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Immune Response after Hepatitis B Vaccination among Egyptian Medical Students in Nile Delta
... with blood borne pathogens through occupational ex- posure to blood and infectious body ...contagious blood borne pathogen [4]. After need- lestick exposure to hepatitis B ... See full document
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Anti hepatitis B core antigen testing with detection and characterization of occult hepatitis B virus by an in house nucleic acid testing among blood donors in Behrampur, Ganjam, Orissa in southeastern India: implications for transfusion
... the blood donors and reported ...in blood donors from this region is not yet ...the blood donor population could help to devise a better screening strategy for blood ... See full document
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Hepatitis B Surface Antigen Should Not Be the Only Sought Marker to Distinguish Blood Donors towards Hepatitis B Virus Infection in High Prevalence Area
... Occult hepatitis B, defined as the presence of viral DNA in serum and/or liver in the absence of detectable HBsAg, was described in the late 1970s for the first ...occult hepatitis B viral ... See full document
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Hepatitis B virus genotypes/subgenotypes in voluntary blood donors in Makassar, South Sulawesi, Indonesia
... from blood donors in the southern Asian ...among blood donors, where HBV/C ...healthy blood donors and chronic hepatitis B carriers demonstrated that HBV/C, ... See full document
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Molecular detection of hepatitis delta virus in blood donors with RT-PCR
... 11. Amini S, Mahmoodi MF, Andalibi S, Solati AA. Seroepidemiology of hepatitis B, delta and human immunodefiiciency virus infections in Hamadan province, Iran: a population based study. J Trop Med Hyg. ... See full document
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Prevalence of HBs Ag among blood donors in Transfusion Center, Abidjan (Ivory Coast)
... viral hepatitis (B or C) or sexually transmitted diseases, patients with the virus human im- munodeficiency virus (HIV), sexually transmitted infec- tion, a history of liver or blood transfusion, ... See full document
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Coexistence of Hepatitis B Surface Antigen (HBs Ag) and Anti-HBs Antibodies in Chronic Hepatitis B Virus Carriers: Influence of “a” Determinant Variants
... chronic hepatitis B (CHB), the persistence of hepatitis B surface antigen (HBs Ag) is sometimes associated with antibodies (Ab) to HBs ...escape variants in CHB patients, ... See full document
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Evolution of hepatitis B virus surface gene and protein among Iranian chronic carriers from different provinces
... Mini Blood Kit (Qiagen, Hilden, Germany) according to manu- facturer’s ...complete surface gene was amplified using S1, S2, S6 and S7 primers which included the region of surface gene specifying HBV ... See full document
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Serological Markers of Hepatitis B Virus Infectivity among Hepatitis B Surface Antigen Negative Blood Donors at the University College Hospital, Ibadan
... from blood donors in whom anti-HBc is the only detectable hepatitis B virus marker with no evidence of HBsAg or anti-HBs, particularly in highly endemic ...Iranian blood donors ... See full document
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Hepatitis B Surface Antigen Subtypes in Hepatitis B Seropositive Subjects in University Hospital, Kuala Lumpur
... Hepatitis B Surface Antigen Subtypes in Hepatitis B Seropositive Subjects in University Hospital, Kuala Lumpur ORIGINAL ARTICLE Hepatitis B Surface Antigen Subtypes in Hepatitis B Seropositive Subject[.] ... See full document
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Concurrence of Hepatitis B Surface Antigen and Antibody in Acute and Chronic Hepatitis B Cases
... Concurrence of Hepatitis B Surface Antigen and Antibody in Acute and Chronic Hepatitis B Cases ORIGINAL ARTICLE Concurrence of Hepatitis B Surface Antigen and Antibody in Acute and Chronic Hepatitis B[.] ... See full document
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