Prevalence of hepatitis B virus, its risk factors and co-infection with human immune deficiency virus among clients of voluntary counseling and testing center in Hosanna, Southern Ethiopia

Hepatitis B infection (HBV) infection is a serious public health problem worldwide and its co-infection with human immune deficiency virus (HIV) is common due to shared routes of transmission. An increased mortality due to accelerated hepatic disease progression and the frequent hepatotoxicity caused by antiretroviral therapy are the challenges in the clinical management of HIV. Epidemiological studies on HBV and HBV/HIV co infection are scarce in Ethiopia, particularly at the study area. The aim of this study was to determine the magnitude of HBV, its risk factors and co-infection with HIV among clients of a voluntary counseling and testing (VCT) center in Southern Ethiopia. A facility based crosssectional study was conducted from 1st February 2016 to 15th March among clients of Nigist Eleni Memorial Hospital VCT Center. Data were collected by face-to-face interview and specific formula sheet as well recorded results of laboratory diagnosis of blood sample from each participant. Both descriptive and inferential statistics were used for data analysis. Multivariable logistic regression modeling was done to identify predictors of HBV. Overall, 331 participants were included in the study. The prevalence of HBV was 8.8%, HBV/HIV co-infection was found in 3.6%. Individuals with a history of multiple sexual partner [AOR = 10.3; 95% CI, 3.71 - 28.83], previous history of invasive procedure [adjusted odds ratio (AOR) = 10.88; 95% CI, 3.84 - 30.86] and history of surgical procedure [AOR = 9.2; 95% CI, 3.1 - 27.88] were identified as in dependent predictors of HBV infection. High HBV infection and HBV/HIV coinfection was found in the study.Previous history of surgical procedure, invasive procedure and multiple sexual partners were identified as independent predictor of HBV infection

Hepatitis B Virus Infection: the Burden of Disease in South Africa

Hepatitis B virus infection; both acute and chronic; occurs commonly in the black population of South Africa; and chronic infection and its sequelae of cirrhosis and hepatocellular carcinoma are major public health threats. Chronic hepatitis B virus infection is rare in the other population groups; with the exception of the very small Chinese community. Prevalences of chronic carriage of hepatitis B virus in South African blacks are 5-16in rural males; 8-9in urban males; 4-12in rural females; and 2.7-4in urban females. The overall male to female ratio is 2.6:1.0. There are now three to four million South African blacks who are chronically infected with this virus. In rural black populations chronic hepatitis B virus infection is acquired very early in life; predominantly as a result of horizontal transmission of the virus; and by the age of 5 years carrier rates approach those seen in adulthood. A further slight increase occurs at school-going age and a greater increase at the time of becoming sexually active. Urban black carrier rates are significantly lower and the infection is acquired later in life. The decreased urban viral carriage rates occur mainly in the first generation born in an urban environment. Hepatitis B virus accounts for about 60of clinically evident acute viral hepatitis among blacks and about 10of chronic hepatitis and cirrhosis. It is the cause of the majority of the many cases of hepatocellular carcinoma that occur in black South Africans. The tumour is more common in males and in rural-born than in urban-born blacks. The close association between chronic hepatitis B virus infection and hepatocellular carcinoma holds true in rural and urban patients and males and females. The association is age-related; being closer in younger patients. Genotypes A and D of hepatitis B virus predominate in South African isolates; with genotype A and its subtype Aa having aparticularly high hepatocarcinogenic potential