Acute hepatitis B Newly acquired symptomatic hepatitis B virus (HBV) infection. Acute hepatitis C Newly acquired symptomatic hepatitis C virus (HCV) infection. ALT Alanine aminotransferase, previously called SGPT. Anti-HBc Antibody to hepatitis B core antigen. Anti-HBe Antibody to hepatitis B e antigen. Anti-HBs Antibody to hepatitis B surface antigen. Anti-HCV Antibody to hepatitis C virus. Anti-HDV Antibody to hepatitis D virus. AST Aspartate aminotransferase, previously called SGOT. AV Arteriovenous. Chronic (persistent) HBV infection Persistent infection with HBV; characterized by detection of HBsAg >6 months after newly acquired infection. Chronic (persistent) HCV infection Persistent infection with HCV; characterized by detection of HCV RNA >6 months after newly acquired infection. Chronic hepatitis B Liver inflammation in patients with chronic HBV infection; characterized by abnormal levels of liver enzymes. Chronic hepatitis C Liver inflammation in patients with chronic HCV infection; characterized by abnormal levels of liver enzymes. CNS Coagulase negative staphylococci. EIA Enzyme immunoassay. EPA U.S. Environmental Protection Agency. ESRD End-stage renal disease. FDA U.S. Food and Drug Administration. GISA Glycopeptide-resistant Staphylococcus aureus. HBcAg Hepatitis B core antigen HBeAg Hepatitis B e antigen. HBsAg Hepatitis B surface antigen. HBV Hepatitis B virus. HBV DNA Hepatitis B virus deoxyribonucleic acid. HCV Hepatitis C virus. HCV RNA Hepatitis C virus ribonucleic acid. HDV Hepatitis D virus. HIV Human immunodeficiency virus. Isolated anti-HBc Anti-HBc positive, HBsAg negative, and anti-HBs negative. MRSA Methicillin-resistant Staphylococcus aureus. NNIS National Nosocomial Infections Surveillance system. RIBA™ Recombinant immunoblot assay. RT-PCR Reverse transcriptase polymerase chain reaction. SGOT Serum glutamic-oxaloacetic transaminase, now called AST. SGPT Serum glutamic-pyruvic transaminase, now called ALT. VISA Vancomycin-intermediate Staphylococcus aureus. VRE Vancomycin-resistant enterococci.