Genomic data shows widespread mpox transmission in West Africa prior to 2022 global outbreak

Historically, most human mpox infections have resulted from zoonotic transmission — meaning from animals to humans — and these spillovers have rarely led to human-to-human transmission. But during the 2022 global outbreak, mpox began spreading readily between people.A new study now shows the virus was circulating long before then.

Published in Nature on May 19, 2025, the study notes that mpox transmitted among humans in Nigeria for eight years before sparking the international outbreak in…

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News Source: www.sciencedaily.com

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