Abstract:
:The availability of an inactivated hepatitis A virus (HAV) vaccine, and the development of live attenuated virus vaccines against hepatitis represent great advances in the effort to control an important cause of viral hepatitis. There are a number of ways hepatitis A vaccines could be used, depending on the epidemiology of HAV infection in the country concerned, the cost of the product, the duration of protection that the vaccine affords and its effectiveness for postexposure prophylaxis. Expert groups could recommend vaccine to individuals who are at higher risk of exposure to hepatitis A as a result of behaviour, lifestyle or occupation, or to all infants and/or adolescents. The major public health problem with hepatitis A occurs in developing countries and regions with 'transitional economies' such as Eastern Europe and certain Middle Eastern countries. These countries have high levels of viral circulation, large cohorts of susceptible older children and adults, and high rates of HAV morbidity. Given the experience with hepatitis B vaccine and the economic and political realities of global immunization policy, it is unlikely that the Expanded Programme on Immunization and traditional vaccine donors will take a great interest in HAV vaccine in the near future. Individual countries may, however, decide to use hepatitis A vaccine on a widespread basis. Model cost effectiveness studies are needed for both developing and developed countries to help decide the feasibility of such widespread use. WHO has been involved in activities relevant to hepatitis A vaccine for many years.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Vaccinejournal_title
Vaccineauthors
Kane MAdoi
10.1016/0264-410x(92)90555-xsubject
Has Abstractpub_date
1992-01-01 00:00:00pages
S93-6eissn
0264-410Xissn
1873-2518pii
0264-410X(92)90555-Xjournal_volume
10 Suppl 1pub_type
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