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Encyclopedia > Hepatovirus
Hepatitis A virus
Virus classification
Group: Group IV ((+)ssRNA)
Family: Picornaviridae
Genus: Hepatovirus
Species: Hepatitis A virus

Hepatitis A is a disease affecting the liver, and caused by the Hepatitis A virus (abbreviated HAV). Only 3 out of 4 people with hepatitis A have symptoms. Those symptoms may include: Viruses can be classified in several ways, such as by their geometry, by whether they have envelopes, by the identity of the host organism they can infect, by mode of transmission, or by the type of disease they cause. ... An RNA virus is a virus that either uses RNA as its genetic material, or whose genetic material passes through an RNA intermediate during replication. ... Genera Enterovirus Rhinovirus Hepatovirus Cardiovirus Apthovirus Parechovirus Erbovirus Kobuvirus Teschovirus Picornaviruses are viruses that belong to the family Picornaviridae. ... A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ... The liver is an organ in vertebrates, including humans. ... The term symptom (from the Greek syn = con/plus and pipto = fall, together meaning co-exist) has two similar meanings in the context of physical and mental health: A symptom can be a physical condition which shows that one has a particular illness or disorder (see e. ...

Hepatitis A can be prevented by good hygiene and sanitation. Vaccination is also available, and is recommended in areas where the prevalence of hepatitis A is high. The United States Centers for Disease Control and Prevention (CDC) in 1991 reported a low mortality rate of 4 deaths per 1000 cases for the general population but a higher rate of 17.5 per 1000 in those aged 50 and over. Jaundice, technically known as icterus, is yellowing of the skin, sclera (the white of the eyes) and mucous membranes caused by increased levels of bilirubin in the system. ... An eye is an organ that detects light. ... Urine is liquid waste excreted by the kidneys and eventually expelled from the body in a process known as urination. ... Nausea (Greek Ναυτεία) is the sensation of unease and discomfort in the stomach with an urge to vomit. ... Fever, also known as pyrexia, is a medical symptom which describes an increase in internal body temperature to levels which are above normal (37 degrees Celsius, 98. ... Fatigue is a feeling of excessive tiredness or lethargy, with a desire to rest, perhaps to sleep. ... The appetite is the desire to eat food, felt as hunger. ... Stomach ache is a non-medical term used to describe various forms of nausea or abdominal pain. ... Vomiting (or emesis) is the forceful expulsion of the contents of ones stomach through the mouth. ... Hygiene is the maintenance of healthful practices. ... Sanitation is a term for the hygienic disposal or recycling of waste materials, particularly human excrement. ... Vaccination is a term coined by Edward Jenner for the process of administering a weakened form of a disease to patients as a means of giving them immunity to a more serious form of the disease. ... The Centers for Disease Control and Prevention (CDC) in Atlanta is recognized as the lead United States agency for protecting the public health and safety of people by providing credible information to enhance health decisions, and promoting health through strong partnerships with state health departments and other organizations. ... 1991 is a common year starting on Tuesday of the Gregorian calendar. ... Mortality rate (the word mortality comes from mortal, which originates from Latin mors, death) is the annual number of deaths (from a disease or at general) per 1000 people. ...


Hepatitis A outbreaks still occur in developed countries and are usually traced to unsanitary conditions at restaurants, including but not limited to employees failing to wash their hands after restroom breaks. The most widespread Hepatitis A outbreak in American history afflicted at least 640 people (killing four) in northeastern Ohio and southwestern Pennsylvania in late 2003. In November of that year, the outbreak was blamed on tainted green onions (imported from Mexico) at a restaurant in Monaca, Pennsylvania. A developed country is a country that has achieved (currently or historically) a high degree of industrialization, and which enjoys the higher standards of living which wealth and technology make possible. ... Flush toilet A toilet is a plumbing fixture devised for the disposal of bodily wastes, including urine, feces, menses and vomit. ... State nickname: The Buckeye State Other U.S. States Capital Columbus Largest city Columbus Governor Bob Taft Official languages None Area 116,096 km² (34th)  - Land 106,154 km²  - Water 10,044 km² (8. ... State nickname: The Keystone State Other U.S. States Capital Harrisburg Largest city Philadelphia Governor Ed Rendell Official languages None Area 119,283 km² (33rd)  - Land 116,074 km²  - Water 3,208 km² (2. ... 2003 is a common year starting on Wednesday of the Gregorian calendar. ... The common name scallion is associated with various members of the genus Allium that lack a fully-developed bulb. ... Monaca is a borough located in Beaver County, Pennsylvania. ...


Ways to prevent hepatitis A include the following:

  • Wash hands with soap and warm water before preparing or eating food, and after sexual activity.
  • Keep bathrooms clean and disinfected after every use.
  • Cook shellfish thoroughly before eating.
  • Drink water from approved sources only.
  • Use a dental dam or sheet of plastic wrap during rimming.

Look up Sex in Wiktionary, the free dictionary The members of many species of living things are divided into two or more categories called sexes (or loosely speaking, genders). ... A typical American bathroom A bathroom is a room that may have different functions depending on the cultural context it is used in. ... Shellfish is a term used to describe molluscs and crustaceans used as food. ... Water (from the Old English word wæter) is a colorless, tasteless, and odorless substance that is essential to all known forms of life and is known also as the most universal solvent. ... dental dam in dentistry Dental dams [1] are essentially square sheets of latex used in dentistry, specifically endodontic treatment (root canals). ... 14th century manuscript illustration of the accusations of sodomy against the Knights Templar Anal-oral contact (commonly referred to as anilingus and colloquially known as rimming or tossing salad) is sexual activity involving contact between the anus or perianal areas of one person and the mouth of another. ...

See also

  • Hepatitis
  • Hepatitis B
  • Hepatitis C

Hepatitis is a gastroenterological disease, featuring inflammation of the liver. ... Originally known as serum hepatitis, Hepatitis B has only been recognized as such since World War II, and has caused current epidemics in parts of Asia and Africa. ... Hepatitis C is a form of hepatitis (liver inflammation) caused by a virus, the Hepatitis C virus (HCV). ...

Sources

Cooking Merit Badge Pamphlet, Boy Scouts of America, Irving, TX, 2004 ISBN 0-8395-3349-7 The Boy Scouts of America (BSA) is an organization for boys between the ages of 7 and 18, and for both young men and women between the ages of 14 and 21, based in the United States of America, with some presence in other countries. ...


External link

  • CDC's Hepatitis A links
  • CDC's Hepatitis A Fact Sheet

  Results from FactBites:
 
Hepatovirus Terms and Definitions at www.MedicalGlossary.org (163 words)
Home > Organisms > Viruses > Hepatitis Viruses > Hepatovirus Terms and Definitions
A genus of PICORNAVIRIDAE causing infectious hepatitis naturally in humans and experimentally in other primates.
Hepatitis A virus - A species in the genus HEPATOVIRUS containing one serotype and two strains: HEPATITIS A, HUMAN and Simian hepatitis A virus.
  More results at FactBites »

 
 

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