Background: Co-infection with human immunodeficiency virus (HIV) and hepatitis B virus (HBV) is common due to shared routes of transmission, as reported approximately 10% of 33 million HIV-infected patients worldwide are chronically infected with HBV. Mutations of HBsAg especially within the "a" determinant could alter the antigenicity of the protein, causing failure of HBsAg neutralization and escaping from the host's immune system. This results in active viral replication and liver disease.

The purpose of this article is to investigate the relationship between job satisfaction (JS) and customer satisfaction (CS) in the Social Security Insurance Organization (SSIO) in Iran. The statistical population of this research is composed of employees and customers of Tehran SSIO. Two questionnaires were used to measure the variables of the research. A job descriptive index (JDI) & service quality (SERVQUAL) questionnaire are used to measure JS and CS. Data are analyzed using Pearson Correlation Coefficient and regression analysis. The results indicated that there is no significant relationship JS and CS of Tehran Social SSIO (P > 0.05). Among all the research variables, only satisfaction from colleagues, employee satisfaction and satisfaction with management performance were able to predict CS from the services of the SSIO. Service satisfaction and satisfaction from colleagues also have the ability to predict satisfaction with management performance. In the end, only satisfaction with management performance and service satisfaction has been a significant predictor of CS.

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