Seroprevalence of hepatitis B surface antigenemia and its effects on hematological parameters in pregnant women in Osogbo, Nigeria

Abstract Background The transmission of the hepatitis B virus (HBV) is parenteral, sexual and perinatal. Prevention of vertical transmission of HBV is extremely important because HBV infection in early life usually results in a chronic carrier State. Methods A descriptive seroepidemiological study of hepatitis B virus and its effects on hematological parameters was investigated in pregnant women attending antenatal clinic of LAUTECH Teaching Hospital, Osogbo, Nigeria. 200 venous samples were subjected to full blood count and its sera were subjected to enzyme–linked immunosorbent assay for the detection of surface antigen of hepatitis B virus. Results Prevalence rate of 16.5% was obtained for hepatitis B surface antigen in pregnant women. The highest HBsAg prevalence rate recorded was 23.3% for pregnant women between aged 30–34 years while the lowest recorded was zero percent for those aged greater than 40 years. RBC, WBC, neutrophil, hemoglobin lymphocyte and platelet counts have no significant effects on HBsAg positivity of pregnant women (p = 0.801). There was no significant difference in HBsAg positivity in relation to maternal age, gravidity, gestational age, family type, level of education and occupation (p = 0.073). Among the potential risk factors, there was significant difference in HBsAg positivity in the pregnant women in relation to their history of HBV vaccination (p = 0.039). Conclusions We advocate universal free screening of pregnant women as the endemicity of HBV infections is thus being propagated.</p

Seroprevalence of rubella igg antibody in pregnant women in Osogbo, Nigeria

Background: Infection of mothers with Rubella virus during pregnancy can be serious; if the mother is infected within the first 20 weeks of pregnancy she is likely to have miscarriage, stillbirth, or baby with congenital rubella syndrome. This study was carried out to define Rubella virus seroprevalence in pregnancy in Osogbo, Nigeria. Methods: This study is a cross-sectional sero-survey of rubella IgG antibody among pregnant women attending antenatal clinic of Ladoke Akintola University of Technology Teaching Hospital, Osogbo, Nigeria. Socio-demographic information on participants was collected by interviewer-administered questionnaire while venous samples were collected, stored at −20°C and serum samples were screened for detection of rubella IgG antibodies using the enzyme linked immunosorbent assay. Results: Of the 200 sample evaluated for rubella Immunoglobulin G antibody, 175 (87.5%) were positive and 25 (12.5%) were negative. The result indicated prevalence of 85.7% in 15-19 year age group, 86.8% in 20-24 year age group, 89.6% in 25-29 year group, and 100% in greater than 40 year age group. Rubella IgG seroprevalence was not associated with age, gestational age, gravidity, vaccination, occupation and education. Conclusions: As the immunity gap in the studied population was high, rubella vaccination should be provided for all women of child-bearing age and childre