Outbreaks have been occurring in West and Central Africa for decades, but there are now more than 100 cases in many countries outside Africa. Monkeypox caused by infected people in Great Britain attracted attention in early May. Australia, the United States, Canada, Belgium, Spain, France and Portugal, for example, are now also affected. The first case was recorded in the Congo in 1970, and, according to the World Health Organization, outbreaks have been repeated in Nigeria, Cameroon and Congo since then. However, the first patient outside the African continent was only reported nearly 20 years ago.