>Viruses are often the cause of liver inflammation, particularly the hepatitis type A, B, C, D and E viruses. All clinical labs in the U.S. are required to report those viruses when they're discovered, so health authorities can work to stop outbreaks. >So far, however, all of the usual hepatitis viruses have been ruled out. Weird they knew people were dying of covid and had it sequenced within days but a new mystery hepatitis virus can’t be found.