Antiviral Agents/pharmacology; Immunologic Factors/pharmacology; Plant Extracts/pharmacology; Virus Attachment/drug effects; Animals; Antiviral Agents/chemistry; Carbohydrates/chemistry; Carbohydrates/isolation & purification; Cell Line; Chlorocebus aethiops; Chromatography, Gel; Chromatography, Ion Exchange; Cytomegalovirus/drug effects; Cytomegalovirus/growth & development; Herpesvirus 1, Human/drug effects; Herpesvirus 1, Human/growth & development; Humans; Immunologic Factors/chemistry; Interleukin-10/biosynthesis; Interleukin-1beta/biosynthesis; Lignin/chemistry; Lignin/isolation & purification; Measles virus/drug effects; Measles virus/growth & development; Mice; Nitric Oxide/metabolism; Nitric Oxide Synthase Type II/genetics; Nitric Oxide Synthase Type II/metabolism; Pimpinella/chemistry; Plant Extracts/chemistry; Plant Proteins/chemistry; Plant Proteins/isolation & purification; Seeds/chemistry; Virus Diseases/drug therapy; Virus Diseases/virology