![]() People at increased risk for severe disease from HAV infection People who anticipate close personal contact with an international adoptee.People with occupational risk for exposure.People who use injection or noninjection drugs (all those who use illegal drugs).People at increased risk for HAV infection Who is at increased risk for acquiring hepatitis A virus (HAV) infection?Īlthough anyone can get hepatitis A, in the United States, certain groups of people are at higher risk for getting infected and for having severe disease if they do get hepatitis A. Ingestion of contaminated food or waterĪlthough viremia occurs early in infection, current data indicate that bloodborne transmission of hepatitis A virus is uncommon.Close person-to-person contact with an infected person.Hepatitis A is transmitted through the fecal-oral route. How is the hepatitis A virus transmitted? However, the number of cases reported in 2021 remains 4 times higher than in 2015. From 2020–2021, there was a 43% decrease in incidence. Since 2016, the United States experienced hepatitis A outbreaks in multiple states that were caused by person-to-person spread primarily among adults who use drugs and experience homelessness. After annual increases since 2015, hepatitis A cases began to decrease in 2020. In 2021, a total of 5,728 cases of hepatitis A were reported in the United States, but due to underreporting, the actual number of cases is likely around 11,500. How common is hepatitis A in the United States? How do I learn more about hepatitis A serology?ĬDC offers an online training that covers hepatitis A serology. † And not otherwise ruled out by IgM anti-HAV or NAAT for hepatitis A virus testing performed in a public health laboratory * Per the Council of State and Territorial Epidemiologists (CSTE) A case that meets the clinical criteria and occurs in a person who had contact (e.g., household or sexual) with a laboratory-confirmed hepatitis A case 15–50 days prior to onset of symptoms.A case that has hepatitis A virus RNA detected by NAAT (such as PCR or genotyping) OR.A case that meets the clinical criteria and is IgM anti-HAV positive† OR.Nucleic acid amplification test (NAAT such as polymerase chain reaction or genotyping) for hepatitis A virus RNA positive.Talk to your doctor about ways to prevent passing it along to other family members or anyone else you come into close contact with. If you have hepatitis A, be careful when in close contact with family and friends. Because hepatitis A is easily transmitted via food and drink, it's best to abstain from preparing food and drink for others while you have an active hepatitis A infection. Be sure to scrub vigorously with soap and warm water for at least 20 seconds and rinse thoroughly. In particular, wash thoroughly after using the toilet or changing diapers. ![]() Frequent hand-washing is one of the best defenses against passing hepatitis A on to others. The Mayo Clinic reports that condoms don't offer adequate protection from the potential transmission of the disease, so skipping any kind of sex all together is your best option. Because of the high risk of transferring hepatitis A to your partner, it's best to abstain from sex until your body has cleared the infection.
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