The United States confirmed a case of monkeypox infection on Wednesday in a man who recently traveled to Canada. It is not yet clear if the man, who lives in Massachusetts and who traveled to Canada by car, is connected to the growing outbreak of monkeypox cases in Europe.
The case was announced in a statement posted to the website of the Massachusetts Department of Public Health. Confirmatory testing was done by the Centers for Disease Control and Prevention, which had warned earlier Wednesday that cases in this country were likely to begin to be detected.