who is most at risk for hepatitis a?
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['Live with or have sex with someone who has hepatitis A.', 'Travel to countries where hepatitis A is common.', 'Are a man who has sex with other men.', 'Use illegal drugs.', 'Have a clotting-factor disorder (such as hemophilia)']
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Natural Immunity People who have hepatitis A infection become immune to HAV for the rest of their lives once they recover. They cannot get hepatitis A twice.
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A different virus is responsible for each type of virally transmitted hepatitis. Hepatitis A is always an acute, short-term disease, while hepatitis B, C, and D are most likely to become ongoing and chronic. Hepatitis E is usually acute but can be particularly dangerous in pregnant women.
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It appears that all adults, adolescents, and children become immune to hepatitis A virus infection after getting two doses. After one dose, at least 94 out of 100 people become immune for the short term. It is very important to get the full two-dose series to have long-term protection.
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['Typhoid.', 'Hepatitis A.', 'Measles, mumps, rubella (MMR)', 'Diphtheria, whooping cough, tetanus (DPT)']
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['Children younger than 5 years of age.', 'Adults aged 65 and older.', 'People with weakened immune systems, including pregnant women.', 'People who travel to certain countries.']
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Selectively advised vaccines - only for those individuals at highest risk: Hepatitis A. No yellow fever vaccination certificate required for this country.
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People infected with both viruses have a high risk of developing chronic hepatitis, cirrhosis, and liver cancer. The risk is even higher if they are heavy drinkers (at least 6 alcoholic drinks a day).
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Hepatitis A is very contagious. It is spread when someone unknowingly ingests the virus — even in microscopic amounts — through close personal contact with an infected person or through eating contaminated food or drink.
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['DTaP.', 'Polio.', 'MMR.', 'Hepatitis B.', 'Varicella (Chickenpox)', 'MCV4 (Meningococcal)']
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People who have hepatitis A infection become immune to HAV for the rest of their lives once they recover. They cannot get hepatitis A twice.
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You can also get it if you share contaminated needles and syringes. Hepatitis A can be prevented by being careful where you eat and drink; practising safer sex, including using male and female condoms, dental dams and latex gloves; never sharing needles and syringes; and/or having a hepatitis A vaccination.
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Hepatitis A Outbreak. The Centers for Disease Control and Prevention are monitoring hepatitis A outbreaks throughout the country. Many counties in Washington have increases in hepatitis A cases and the Department of Health declared a statewide outbreak in July 2019.
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Hepatitis A is transmitted primarily through oral contact with feces (oral-fecal contact). This includes contaminated food or water sources and sexual contact, especially oral-anal sex.
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Courses or boosters usually advised: Diphtheria; Hepatitis A. Other vaccines to consider: Hepatitis B; Rabies; Tetanus; Typhoid. Selectively advised vaccines - only for those individuals at highest risk: none.
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Hepatitis A is a viral liver disease that can cause mild to severe illness. The hepatitis A virus (HAV) is transmitted through ingestion of contaminated food and water or through direct contact with an infectious person.
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Medical Definition of Hepatitis A. Hepatitis A: Inflammation of the liver caused by the hepatitis A virus (HAV). HAV is usually transmitted from person to person by food or drink that has been contaminated with the stool of a person with hepatitis A.