title: Risk of perinatal transmission of hepatitis B virus in Jordan.
abstract: OBJECTIVE
  To determine the risk of perinatal transmission of hepatitis B virus (HBV) in Jordan.
  
  
  METHODS
  Plasma samples from 1000 pregnant Jordanian women were screened by ELISA for HBV markers (HBsAg, HBeAg, anti-HBe, anti-HBc and anti-HBs).
  
  
  RESULTS
  HBsAg and HBeAg were detected in 4.3% and 0.1% of the pregnant women, respectively. The overall prevalence of antibodies was 6%, 11.1% and 7.5% for anti-HBe, anti-HBc and anti-HBs, respectively. Women were assigned to four groups according to the serological patterns of HBV markers: susceptible (85.9%), with acute infection (2.9%), with chronic infection (1.4%) and previously infected (9.8%). Most women were at the third trimester of pregnancy, therefore women with acute and chronic hepatitis at this gestational age were at risk of transmitting HBV infection to their newborns. Women who belonged to the low socio-economic class were at higher risk of HBV infection.
  
  
  CONCLUSIONS
  Based on the results, we recommend screening women for HBV during pregnancy in order to identify HBV carriers. All newborns born to carriers should be vaccinated immediately after birth, both passively and actively. Also vaccination of HBV seronegative pregnant women is recommended.
authors.affiliation: Department of Biological Sciences, Faculty of Science, University of Jordan, Amman, Jordan. bsalwa@sci.ju.edu.jo
authors.forename: Naji
authors.initials: N
authors.lastname: Batayneh
authors.forename: Salwa
authors.initials: S
authors.lastname: Bdour
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D016009:Chi-Square Distribution; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006509:Hepatitis B / Q000097:blood / Q000453:epidemiology* / Q000635:transmission*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D007231:Infant, Newborn; D018445:Infectious Disease Transmission, Vertical; D007597:Jordan / Q000453:epidemiology; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011295:Prenatal Care; D015995:Prevalence; D011336:Probability; D018570:Risk Assessment; D012698:Serologic Tests
chemical_list: D006514:Hepatitis B Surface Antigens