Ectromelia virus
（重定向自Mousepox virus）
Ectromelia virus (ECTV) is a virus of the family Poxviridae and the genus Orthopoxvirus that causes mousepox, a disease of mice. It has only been seen in mouse colonies kept for research purposes. Mousepox causes skin lesions and generalized disease, which can be fatal. It is the only poxvirus to cause disease naturally in mice.