Poxviridae
![](/Images/godic/202501/20/Electron_micrograph_of_smallpox_virus2708.jpg")
![A) Electron micrograph of poxvirus particles in synovium of a big brown bat, northwestern United States. B) Negative staining of poxvirus particles in cell culture supernatant. Scale bar = 100 nm.](/Images/godic/202501/20/Electron_micrograph_of_poxvirus_particles_in_synovium_of_a_big_brown_bat_and_negative_staining_of_poxvirus_particles_in_cell_culture_supernatant2708.jpg")
Poxviridae is a family of viruses. Human, vertebrates, and arthropods serve as natural hosts. There are currently 69 species in this family, divided among 28 genera, which are divided into two subfamilies. Diseases associated with this family include smallpox.