What is monkeypox and its signs and symptoms?

An extremely rare disease called monkeypox, a cousin of smallpox, has again made its way to the United States. A case of monkeypox was reported Wednesday in a patient hospitalized in Massachusetts who had recently traveled to Canada in private transportation.An extremely rare disease called monkeypox, a cousin of smallpox, has again made its way to the United States. A case of monkeypox was reported Wednesday in a patient hospitalized in Massachusetts who had recently traveled to Canada in private transportation.