hepatitis B

noun

: an acute or chronic hepatitis that is caused by a DNA virus (species Hepatitis B virus of the genus Orthohepadnavirus, family Hepadnaviridae), is marked chiefly by fatigue, fever, nausea, vomiting, abdominal pain, darkened urine, jaundice, and joint pain but may be asymptomatic, and is transmitted especially by contact with infected blood (as by transfusion or by sharing contaminated needles in illicit intravenous drug use) or by contact with other infected bodily fluids (such as semen)

Note: The acute form of hepatitis B, a mild illness lasting several weeks to months, may progress to long-term or chronic infection often leading to liver damage, liver failure, or liver cancer.

called also serum hepatitis

Examples of hepatitis B in a Sentence

Recent Examples on the Web

A lot of the same states that had high rates of vaccine coverage for the DTP/DTaP/DT vaccine had high rates of coverage for the hepatitis B vaccine, and the situation was the same for the states with low levels of coverage. —Jasmine Laws, MSNBC Newsweek, 2 Aug. 2025

Vaccine coverage for shots that protect against measles, polio, chickenpox, whooping cough and hepatitis B have now been under 95% -- a threshold many experts consider herd immunity -- since at least the 2020-2021 school year. —Youri Benadjaoud, ABC News, 1 Aug. 2025

Moreover, his assertion that Israel delays the hepatitis B shot is inaccurate; Israel follows World Health Organization guidelines and vaccinates newborns just like the U.S. While there has been a worldwide rise in allergies, experts don’t attribute it to vaccines. —Joshua P. Cohen, Forbes.com, 1 Aug. 2025

The hepatitis B vaccine is required for all grades except when starting seventh grade. —Sacbee.com, 29 July 2025

Word History

First Known Use

1971, in the meaning defined above

Rhymes for hepatitis B

• actuary
• antiquary
• bolsheviki
• calliope
• chelicerae
• covenantee
• cruciferae
• diastole
• distributee
• hyperbole
• interviewee
• origami

Medical Definition

hepatitis B

noun

-ˈbē 

: an acute or chronic hepatitis that is caused by a double-stranded DNA virus (species Hepatitis B virus of the genus Orthohepadnavirus, family Hepadnaviridae), is marked chiefly by fatigue, fever, nausea, vomiting, abdominal pain, darkened urine, jaundice, and joint pain but may be asymptomatic, and is transmitted especially by contact with infected blood (as by transfusion or by sharing contaminated needles in illicit intravenous drug use) or by contact with other infected body fluids (as semen)

Note: The acute form of hepatitis B, a mild illness lasting several weeks to months, may progress to long-term or chronic infection often leading to liver damage, liver failure, or liver cancer.

called also serum hepatitis