title: Magnitude and pattern of hepatitis B infection in clinically suspected infectious hepatitis at a tertiary care hospital in urban India.
abstract: BACKGROUND
  Hepatitis B virus (HBV) is a parenterally transmitted viral illness of significant public health importance. The prevalence of HBV related viral hepatitis still remains debatable.
  
  
  OBJECTIVE
  The objective of the following study is to determine the magnitude and pattern of HBV infection in clinically suspected infectious hepatitis at a tertiary care hospital in urban India.
  
  
  METHODS
  This prospective study was conducted in the Department of Microbiology at Lady Hardinge Medical College, New Delhi, over a period of 1 year from January 2008 to December 2008. All the serum samples taken from subjects (600 study and 200 control) were tested for hepatitis B surface antigen (HBsAg) using commercially available enzyme linked immunosorbent assay kit. Serum samples testing positive for HBsAg were tested for hepatitis B e antigen, immunoglobulin M (IgM) capture anti hepatitis D virus (HDV), IgM anti hepatitis B surface and IgM anti hepatitis B core.
  
  
  RESULTS
  24 (4%) serum samples tested positive for HBsAg in the study group while 5 (2.5%) tested positive in the control. Maximum seropositivity of HBsAg was in 20-30 years of age group in the study group (7.6%) followed by 11-20 years (4.5%), 0-10 years (2.8%) and >40 years (2.5%). The difference in seropositivity in study and control group was statistically insignificant in all the age groups (P > 0.05). Out of 24 cases positive for HBsAg, 4 cases (16.6%) were co infected with HDV in study group while there were none in control group.
  
  
  CONCLUSIONS
  HBV is a common cause of parenterally transmitted viral hepatitis and hence, it is recommended that measures for public awareness regarding safe infection practices and safe sex practices should be undertaken to limit its spread.
authors.affiliation: Department of Microbiology, Lady Hardinge Medical College, New Delhi, India.
authors.forename: Monika
authors.initials: M
authors.lastname: Rajani
authors.affiliation: Department of Microbiology, Lady Hardinge Medical College, New Delhi, India.
authors.forename: Manoj
authors.initials: M
authors.lastname: Jais
keywords: Enzyme linked immunosorbent assay; Hepatitis B virus; Hepatitis D virus; Seroprevalence