Without explanation, the US Centers for Disease Control and Prevention under the Trump administration has reverted from using the disease name "mpox" to the obsolete "monkeypox," which the world abandoned in 2022 because it was seen as racist and stigmatizing.
Mpox is the name of the disease caused by Orthopoxvirus monkeypox, a relative of smallpox and cowpox that has exploded to global prominence in recent years. In 2022 and 2024, the spread of mpox caused the World Health Organization to declare international public health emergencies.
Amid the attention, health officials became acutely aware of the problematic name.
The name came about because scientists discovered the virus in captive Asian monkeys that had been shipped to Denmark from Singapore in 1958. It was assumed that monkeys were the natural hosts for the virus, but the assumption hasn't held up over time. The initial human cases were identified in the 1970s in West and Central Africa, and subsequent studies and outbreaks found that the virus can infect a broad range of animals. To date, scientists are still uncertain about what animal or animals are the natural carriers of the virus, but the evidence so far points to African rodents, particularly squirrels—not monkeys.
While the name is considered a misnomer at this point, it caused a bigger problem in practice. The term "monkey" has a long history of being used as a slur toward Black people. Further, the outbreak in 2022 was initially discovered spreading through sexual networks of men who have sex with men, which conjured the discrimination and stigma reminiscent of the early days of the HIV/AIDS pandemic. Clinicians responding to the health emergency quickly reported facing a blend of racist and homophobic vitriol.