Cases have now been recorded in every state, according to the Centers for Disease Control and Prevention.
That’s up from 44 states and Washington, D.C., at the end of July and from 14 states and Washington, D.C., at the beginning of June.
In total, the U.S. has reported more than 24,000 cases since the beginning of May.
The World Health Organization declared the outbreak a public health emergency in July.
In the last three weeks, California, Illinois and New York state have issued emergency declarations over the continued spread of monkeypox.