Five Americans are likely infected with monkeypox, according to the CDC, warning that people might first mistake the infection for an STD.
RELATED: Here's why we shouldn't be too concerned about monkeypox
Scientists have recorded more than 250 confirmed or suspected monkeypox cases, mainly in Europe, and are trying to determine if and how the cases might be connected.
For decades, monkeypox has been seen in parts of Central and West Africa, believed to jump occasionally from animals, probably rodents, into people. Typically, several travelers a year arrive in the U.S. and Europe infected with the virus, but such a large chain of person-to-person transmission has never been seen before.
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