Human HBsAg ELISA Kit (IVDEIA001)

Regulatory status: For research use only, not for use in diagnostic procedures.

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serum, plasma
Species Reactivity
Intended Use
The human HBsAg ELISA Kit is an enzyme-linked immunosorbent assay (ELISA) for qualitative detection of HBsAg in human serum or plasma. It is intended for screening of blood donors and for diagnosing of patients related to infection with hepatitis B virus.
Contents of Kit
1. Microwell Plate
2. Negative Control
3. Positive Control
4. HRP-Conjugate
5. Specimen Diluent
6. Wash Buffer
7. Chromogen Solution A
8. Chromogen Solution B
9. Stop Solution
The components of the kit will remain stable through the expiration date indicated on the label and package when stored at 2-8°C, do not freeze. For more detailed information, please download the following document on our website.
0.1 IU/mL


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Hepatitis A, B and C seropositivity among first-year healthcare students in western Turkey: a seroprevalence study


Authors: Acikgoz, Ayla; Cimrin, Dilek; Kizildag, Servet; Esen, Nuran; Balci, Pinar; Sayiner, Ayca Arzu

Background The risk of viral hepatitis among healthcare students (HCSs) is greater than that among the general population. Therefore, this study was conducted to investigate the seroprevalence of the hepatitis A virus (HAV), hepatitis B virus (HBV) and hepatitis C virus (HCV) among first-year HCSs at a university in Turkey and as a secondary objective, to determine the factors associated with HAV and HBV seropositivity. Methods This cross-sectional study was performed in first-year HCSs in Izmir, western Turkey. Data were collected using a self-administered questionnaire including items on sociodemographic characteristics, medical history, and hygiene. A total of 650 HCSs were tested for the HAV, HBV and HCV markers. Categorical variables were compared using the chi-square test. The association between independent variables and anti-HAV seropositivity and anti-HBs seropositivity was assessed by multinomial logistic regression analysis. Results The overall frequency of total anti-HAV seropositivity was 34.9%. HBsAg, total anti-HBc and anti-HBs seropositivity were found in 0.3, 1.2 and 93.7% of samples, respectively. All of the HCSs were negative for anti-HCV. Total anti-HAV seropositivity was found to be 1.73 times higher in those >= 21 years old, and it was 1.61 times higher in those who perceived their economic status to be average and 2.75 times higher in those who perceived their economic status to be low. Total anti-HAV seropositivity was found to be 4.37 times higher in those who lived in provinces with intermediate human development index levels. Total anti-HBs seropositivity was found to be 2.48 times higher in those <= 20 years old, and it was 2.13 times higher in those who perceived their economic status to be average. Conclusions Approximately two out of three HCSs were susceptible to HAV infection. Since HCSs are at high risk for HAV infection, they should be vaccinated before medical clerkships begin. Our results indicate that there is a high prevalence of anti-HBs seropositivity among HCSs. This result may be largely attributed to the implementation of a successful vaccination program in Turkey since 1998.

Chronic hepatitis B virus infection in Italy during the twenty-first century: an updated survey in 2019


Authors: Stroffolini, Tommaso; Ciancio, Alessia; Furlan, Caterina; Vinci, Maria; Niro, Grazia Anna; Russello, Maurizio; Colloredo, Guido; Morisco, Filomena; Coppola, Nicola; Babudieri, Sergio; Ferrigno, Luigina; Sagnelli, Caterina; Sagnelli, Evangelista

The aim of this study is to provide updates on the characteristics of chronic HBsAg carriers in Italy before the advent of new drugs eliminating or functionally inactivating the genome HBV reservoirs. HBV endemicity has greatly decreased in Italy over the past decades. A not negligible number of chronic HBsAg carriers are still alive in the country. Chronic HBsAg carriers consecutively referring to 9 units in Italy were prospectively enrolled for a 6-month period in 2019. Multiple logistic regression analysis was performed to identify independent predictors of treatment. A total of 894 cases was recruited (sex ratio 1.6; mean age 53.7 +/- 13.5 years). The proportion of subjects born abroad was 19.0%; only 1% of cases reported current heavy alcohol intake (> 4 units/day). Chronic HBV infection, chronic HBV hepatitis, and subjects with liver cirrhosis and/or HCC represented 24.8%, 55%, and 19.3% of cases, respectively. After exclusion of the 222 subjects with chronic HBV infection, the proportion of subjects under therapy was as high as 89.3%. A more severe liver disease (OR 2.52; 95% CI = 1.25-5.14) resulted an independent predictor of the likelihood of treatment; male sex was marginally associated (OR 1.67; 95% CI = 1.02-2.76) to the chance of treatment. People born abroad had same chance than Italians native to be treated (OR 2.12; 95% CI = 0.9-4.97). The high proportion of subjects under treatment and the absence of gender and ethnic barrier against treatment sound good news. These updated figures may represent reference data for evaluating the potential impact of forthcoming new therapy against HBV-related disease.

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