Monkeypox United States 2025. Mpox is a disease caused by infection with the monkeypox virus— a type of orthopoxvirus. Mpox (monkeypox) is a viral disease that occurs mostly in central and western africa.

The united states has reported 29,513 confirmed monkeypox cases as of december 9, followed by brazil with 10,231 and spain with 7,412 cases. Mpox is a disease caused by infection with the monkeypox virus— a type of orthopoxvirus.