Two more people in the South West have tested positive to COVID-19 overnight taking the total number of cases in the region to eight.
Health minister Roger Cook said there were another 24 new cases in WA (11 male and 13 female) taking the state's total to 255 people.
Five people who tested positive were from regional WA, another two cases were recorded in the Pilbara and one in the Great Southern.
Mr Cook said a five-month old baby had tested positive whose parents have also been diagnosed with the disease.
Of the new cases, 11 people had been on cruise ships taking the state's total of cruise ship passengers with COVID-19 to 62.