Published: 17 September 2022
Author(s): Paulo Ricardo Martins-Filho, Diego Moura Tanajura, Gonzalo Vecina-Neto
Issue: January 2023
Section: Letter to the Editor

The world is facing an outbreak of monkeypox. Since early May 2022, more than 60,000 cases of monkeypox have been reported from countries where the disease is not endemic. Monkeypox is a zoonotic virus that belongs to the Poxviridae family and is closely related to the smallpox virus. The disease has historically been limited to parts of Central and West Africa, but it has been suggested that waning population immunity associated with the discontinuation of smallpox vaccination from the 1970s onwards has established the landscape for the resurgence of monkeypox in nonendemic countries, particularly among individuals under 50 years of age [1].


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