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estimated 1.5 million HBV carriers in the U.S. (NWHIC); 417,000 people currently infected (CDC 2001) ... see also overview of Hepatitis B.
approx 1 in 181 or 0.55% or 1.5 million people in USA [Source statistic for calcuation: "estimated 1.5 million HBV carriers in the U.S. (NWHIC); 417,000 people currently infected (CDC 2001)" -- see also general information about data sources]
For details see prevalence of types of Hepatitis B analysis; summary of available prevalence data:
200,000 to 300,000 new cases in the USA 1990 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994) ... see also overview of Hepatitis B.
approx 1 in 1,359 or 0.07% or 200,000 people in USA [Source statistic for calcuation: "200,000 to 300,000 new cases in the USA 1990 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)" -- see also general information about data sources]
200,000 per year, 16,666 per month, 3,846 per week, 547 per day, 22 per hour, 0 per minute, 0 per second. [Source statistic for calculation: "200,000 to 300,000 new cases in the USA 1990 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)" -- see also general information about data sources]
4% of population in the USA have history of HepB disease 1990 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)
Approximately 750,000 people in the United States are living with sexually acquired hepatitis B infection. (Source: excerpt from Sexually Transmitted Diseases Statistics, NIAID Fact Sheet: NIAID) ... 4 percent of U.S. population that have any history of disease (1990) (Source: excerpt from Digestive Diseases Statistics: NIDDK) ... There are an estimated 1.5 million HBV carriers in the U.S. and 300 million carriers worldwide. (Source: excerpt from Hepatitis: NWHIC)
360 million people worldwide for Hepatitis B (Blood Safety Surveillance and Health Care Acquired Infections Division, Health Canada)
An estimated 77,000 cases of sexually transmitted hepatitis B infection occur annually in the United States. (Source: excerpt from Sexually Transmitted Diseases Statistics, NIAID Fact Sheet: NIAID) ... 200,000 to 300,000 new cases (1990) (Source: excerpt from Digestive Diseases Statistics: NIDDK)
The following statistics relate to the prevalence of Hepatitis B:
The following statistics relate to the incidence of Hepatitis B:
The following statistics relate to deaths and Hepatitis B:
16 MEDICAL BOOKS ONLINE! Review excerpts from medical books online, free, without registration, for more information about the prevalence and/or incidence of Hepatitis B.
The major forms of viral hepatitis result from infection with the causative viruses: A, B, C, D, E, or G.
Type A hepatitis is highly contagious and is usually transmitted by the fecal-oral route. However, it may also be transmitted parenterally. Hepatitis A usually results from ingestion of contaminated food, milk, or water. Many outbreaks of this type are traced to ingestion of seafood from polluted water. In 2001, there were more than 10,000 acute cases of hepatitis A infection reported in the United States.
Type B hepatitis, once thought to be transmitted only by the direct exchange of contaminated blood, is now known to be transmitted also by contact with human secretions and feces. As a result, nurses, physicians, laboratory technicians, and dentists are frequently exposed to type B hepatitis, in many cases as a result of wearing defective gloves. Transmission also occurs during intimate sexual contact as well as through perinatal transmission. An estimated 200,000 new cases of hepatitis B virus (HBV) and 5,000 deaths from HBV occur annually in the United States.
Although specific type C hepatitis viruses have been isolated, only a small percentage of patients have tested positive for them — perhaps reflecting the test’s poor specificity. Usually, this type of hepatitis is transmitted through transfused blood from asymptomatic donors. Hepatitis C accounts for 30,000 new infections and 8,000 to 10,000 deaths each year in the United States. Most exposures (60%) occur through the use of illicit I.V. drugs. However, sexual transmission is responsible for 20% of cases. More than 170 million people have the hepatitis C virus worldwide.
Type D hepatitis is found only in patients with an acute or chronic episode of hepatitis B and requires the presence of HBsAg. The type D virus depends on the double-shelled type B virus to replicate. For this reason, type D infection can’t outlast a type B infection. About 15 million people are infected with hepatitis D worldwide. It’s more common in adults than in children. People with a history of illicit I.V. drug use and people who live in the Mediterranean basin have a higher incidence.
Type E hepatitis is transmitted enterically, much like type A. Because this virus is inconsistently shed in feces, detection is difficult. In the United States, the prevalence of hepatitis E is less than 2%. It’s typically found in developing countries that lie near the equator. Incidence is highest among people ages 15 to 40.
Type G may be transmitted in a manner similar to that of hepatitis C. It may also be transmitted by sexual contact, and its incidence may be higher than previously suspected. It’s associated with acute and chronic liver disease, but studies haven’t clearly implicated the hepatitis G virus as an etiologic agent.
Other proposed causative factors, such as non-ABCDE viral hepatitis and type F, are under investigation.
Source: Professional Guide to Diseases (Eighth Edition), 2005
Depends on the cause of the underlying disease:
Source: The 5-Minute Pediatric Consult, 2008
Source: The 5-Minute Pediatric Consult, 2008
Hepatitis A is the most common viral etiology of pediatric hepatitis. The mode of transmission is person to person, resulting from fecal contamination of food. Sexual contact and nosocomial transmission have also been documented.
Source: Pediatric Infectious Disease, 2004
The term 'prevalence' of Hepatitis B usually refers to the estimated population
of people who are managing Hepatitis B at any given time.
The term 'incidence' of Hepatitis B refers to the annual diagnosis rate,
or the number of new cases of Hepatitis B diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
Footnotes:
1. Notifiable Diseases Online, PPHB, Canada, 2000
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