A few hundred virus species are thought to be pathogenic to humans. In addition, many novel viruses have been identified in the 21st century. Each species has a variety of strains that target different animal hosts, organs, tissues, and have different cell specificity, pathogenicity and antigenicity. A variety of these virus strains have been used to analyze virus pathogenicity, antigenicity and epidemiology, and to develop diagnostics and antivirals.
・Number of species: 28 species
・Wild and mutant strains: 1,482 strains
・cDNA clones: 17 strains