Viral Hepatitis

DURING recent years, the importance of viral hepatitis as a public-health and military problem has become increasingly apparent. The term "viral hepatitis" is used to include as a group the forms of hepatitis caused by filterable infectious agents that apparently are primarily hepatotropic and produce, as their outstanding clinical manifestations, evidences of liver injury that may or may not be associated with phenomena suggesting an infectious origin.Viral hepatitis thus includes the two types of disease commonly referred to as infectious (epidemic) and homologous serum hepatitis. The available evidence indicates that at least two filterable agents, which tentatively can be . . .