Havrix and Vaqta) are commercially available in the US. Both are highly effective and provide protection even after one dose. Two doses are recommended for adults, and three doses are recommended for children under 18 years of age to provide prolonged protection.
- Hepatitis B
Inflammation of the liver due to the hepatitis B virus (HBV), once thought to be passed only through blood products. It is now known that hepatitis B can also be transmitted via needle sticks, body piercing and tattooing using un sterilized instruments, the dialysis process, sexual and even less intimate close contact, and childbirth. Symptoms […]
- Hepatitis B immunization
Hepatitis B (hep B) vaccine gives prolonged protection, but 3 shots over a half year are usually required. In the U.S., all infants receive hep B vaccine. Two vaccines (Energix-B, and Recombivax-HB) are available in the US. The first dose of hep B vaccine is frequently given while the newborn is in the hospital or […]
- Hepatitis C
Inflammation of the liver due to the hepatitis C virus (HCV), which is usually spread via blood transfusion (rare), hemodialysis, and needle sticks. The damage hepatitis C does to the liver can lead to cirrhosis and its complications as well as cancer. Transmission of the virus by sexual contact is rare. At least half of […]
- PCR (polymerase chain reaction)
PCR (polymerase chain reaction) is a technique in molecular genetics that permits the analysis of any short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce (amplify) selected sections of DNA or RNA for analysis. Previously, amplification of DNA involved cloning the segments […]
- Hepatitis C virus
A single-stranded RNA virus in the Flaviviridae family that causes hepatitis C. Abbreviated HCV. The HCV genome contains some 10,000 nucleotides and encodes a single polyprotein of 3,000 amino acids. HCV was discovered in 1989. Before that time, hepatitis C was referred to as non-A, non-B hepatitis.