Genetic data indicate at least two separate monkeypox outbreaks underway, suggesting wider spread
The Centers for Disease Control and Prevention said Friday that new genetic sequencing data indicate there are at least two distinct monkeypox outbreaks underway outside Africa — a surprise finding that one official said suggests international spread is wider, and has been occurring for longer than has been previously realized.
Three of 10 viruses the CDC has sequenced from recent U.S. monkeypox cases — two from 2021 and eight from 2022 — are different from the viruses that have been sequenced by several countries involved in the large outbreak that is spreading in and from Europe. That outbreak is currently being driven by infections in gay, bisexual, and other men who have sex with men.
