Tracking the 2022 Monkeypox Outbreak with Epidemiological Data in Real-Time.

Monkeypox virus was first documented in humans in the 1970s and outbreaks have been reported in many countries, with most cases restricted to endemic areas.1 In early May, 2022, monkeypox cases were reported in the UK, Spain, and elsewhere in Europe (figure, appendix).2 The pattern of geographical dispersal was much larger compared with past outbreaks that were more localised and occurred often in under-resourced communities.3 The size of the outbreak clusters is growing each day, as is the geographical spread across Europe and North America.