There are specific diagnostic tests that can determine either acute, persistent or distant past infection. High titered hepatitis B immunoglobulin can be used for short term protection. An effective vaccine is available to provide active immunization. Diagnostic tests are available that can determine whether an infection is acute or chronic. Immunoglobulin has not proven to be effective.
Current therapy includes alpha interferon and other antiviral drugs.
Diagnostic tests are not readily available but do exist. It has an unusually high mortality rate in pregnant women. There are no readily available diagnostic tests, although these can be obtained on a research basis. There is no known treatment. It does not appear to be associated with significant morbidity or mortality.