Human monkeypox expansion from the endemic to non-endemic regions: Control measures.

The recent monkeypox outbreak in non-endemic countries is a rare event. It is a zoonosis with clinical features similar to smallpox, transmitting from animal to human and human to human. Since 2000, the number of monkeypox cases in humans had increased in African countries, resulting in its spread to the other parts of the world. On May 26, 2022 World Health Organization has confirmed 120 cases of monkeypox in 23 non-endemic countries. The decreased immunity to the Orthopoxviruses, human migration from endemic to non-endemic regions, genetic mutations in the viral genome, and reduced surveillance may contribute to the recent outbreaks. A multi-pronged approach comprising health education, tracking human migration, developing diagnostic facilities, and an effective vaccine could prevent transmission and pathogenicity.