ˌɛktɹoʊmˈiːliə vˈaɪɹəs ˈɛktiːvˌiː ɪz ɐ vˈaɪɹəs ʌvðə fˈæmɪli pˈɑːksvɪɹˌɪdiː ænd ðə dʒˈɛnəs ˈɔːɹθəpˌɑːksvaɪɹəs ðæt kˈɔːzᵻz mˈaʊspɑːks, ɐ dɪzˈiːz ʌv mˈaɪs.
Ectromelia virus (ECTV) is a virus of the family Poxviridae and the genus Orthopoxvirus that causes mousepox, a disease of mice.