The patient, whose identity is being kept confidential for privacy reasons, had not traveled outside the United States recently, the Maryland Health Department revealed in an official statement.
The U.S. Centers for Disease Control and Prevention is warning doctors and public health officials about a handful of locally acquired cases of malaria.
People in Brisbane will be allowed to travel to Victoria without needing to apply for an exemption from 6:00pm AEDT under a relaxation of the state's border restrictions.