Hepatitis A vaccine

Hepatitis A vaccine

Hepatitis A Vaccine, (brand names include Havrix or Avaxim), is a vaccine against the Hepatitis A virus. The vaccine protects against the virus in more than 95% of cases and provides protection from the virus for at least ten years. The vaccine contains inactivated Hepatitis A virus providing active immunity against a future infection.cite web | title = Avaxim | work = NetDoctor.co.uk | url = http://www.netdoctor.co.uk/medicines/100003051.html | accessdate = 2007-03-12]

The vaccine was first phased in around 1996 for children living in high-risk areas. In 1999, it was spread to areas with elevating levels of infection. Today, in the U.S., the vaccine is strongly recommended for all children 12 to 23 months of age in an attempt to eradicate the virus nationwide. The original FDA license for Havrix© by GlaxoSmithKline is dated in 1995. cite web | title = Hepatitis A Vaccine Information | work = Vaccine Information | publisher = ImmunizationInfo | url = http://www.immunizationinfo.org/vaccineInfo/vaccine_detail.cfv?id=3 | accessdate = 2008-06-19] , it has been in use in Europe since early 1994.

According to the U.S. Centers for Disease Control and Prevention and Prevention the following people should be vaccinated: all children over one year of age, people whose sexual activity puts them at risk, people with chronic liver disease, people who are being treated with clotting factor concentrates, people working within close proximity to the virus, and people who are living in communities where an outbreak is present.cite web | title = Hepatitis A Vaccine: What you need to know | work = Vaccine Information Statement | publisher = CDC | url = http://www.cdc.gov/vaccines/pubs/vis/downloads/vis-hep-a.pdf | date = 2006-03-21 | accessdate = 2007-03-12] Hepatitis A is the most common vaccine-preventable virus acquired during travel,cite web | title = Hepatitis, Viral, Type A | work = Travelers' Health: Yellow Book (CDC) | url = http://www2.ncid.cdc.gov/travel/yb/utils/ybGet.asp?section=dis&obj=hav.htm | accessdate = 2007-03-12] so people travelling to places where the virus is common like the Indian Subcontinent, Africa, Central America, South America, the far East, and Eastern Europe should also be vaccinated.cite web | title = Hepatitis A: Introduction | publisher = NHS Direct| url = http://www.nhsdirect.nhs.uk/articles/article.aspx?articleId=667 | date = 2006-10-10 | accessdate = 2007-03-12]

The vaccine should be given in the muscle of the upper arm and be given in two doses for the best protection. The initial dose of the vaccine should be followed up by a booster six to twelve months later. Protection against Hepatitis A occurs two to four weeks after the initial vaccination.


ee also


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Hepatitis B vaccine — Vaccine description Target disease Hepatitis B Type Subunit Clinical data AHFS/Drugs.com mon …   Wikipedia

  • hepatitis A vaccine — A vaccine used to prevent infection with the hepatitis A virus, which causes a serious liver disease. The vaccine is made of a weakened form of the virus that cannot cause disease but causes the body’s immune system to make antibodies that… …   English dictionary of cancer terms

  • hepatitis A vaccine inactivated — an inactivated whole virus vaccine derived from an attenuated strain of hepatitis A virus grown in cell culture; administered intramuscularly as an immunizing agent for preexposure prophylaxis in susceptible persons at least two years of age …   Medical dictionary

  • hepatitis B vaccine (recombinant) — an inactivated virus vaccine derived by recombination from hepatitis B surface antigen and cloned in yeast cells; administered intramuscularly for immunization of children and adolescents and of persons at increased risk for infection …   Medical dictionary

  • Hepatitis B — Classification and external resources Electron micrograph of hepatitis B virus ICD 10 B …   Wikipedia

  • hepatitis B surface antigen — n an antigen that is usu. a surface particle from the hepatitis B virus and that is found in the sera esp. of patients with hepatitis B abbr. HBsAg called also Australia antigen * * * (HBsAg) a coat protein antigen of the hepatitis B virus… …   Medical dictionary

  • Hepatitis A — Clasificación y recursos externos CIE 10 B15 CIE 9 070.1 …   Wikipedia Español

  • Vaccine — For other uses, see Vaccine (disambiguation). A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease causing microorganism, and is often made from… …   Wikipedia

  • Vaccine court — Cases before the Vaccine Court are heard in the U.S. Court of Federal Claims. Vaccine court is the popular term which refers to the Office of Special Masters of the U.S. Court of Federal Claims, which administers a no fault system for litigating… …   Wikipedia

  • Hepatitis C virus — Taxobox name = Hepatitis C virus image width = 160px image caption = Electron micrograph of Hepatitis C virus. The bar = 50 nm virus group = iv familia = Flaviviridae genus = Hepacivirus type species = Hepatitis C virus : This page is for the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”