WA has recorded another single-digit increase in coronavirus cases, with just two cases originating from the State, including one from the Wheatbelt.
The Department of Health reported six new cases of COVID-19 yesterday, bringing the State's total to 523.
Five of Monday's cases are from metropolitan Perth and one from the Shire of Wyalkatchem in the Wheatbelt.
Health Minister Roger Cook said on Monday the low numbers were encouraging but it was "not a time to be complacent."
"As you can see from the number we are tracking well, but...it's time to actually double our efforts to consolidate the gains that we've made to date and ensure that we continue to have these very low numbers throughout the community."
He said restrictions would be reviewed every month.
"We need to see a more sustained period of low numbers. I don't think anyone should expect anything. We're continuing to tell people for good reason they should continue to practice good hygiene and social distancing.
"The only exit strategy is a vaccine and there isn't one yet."
All the new confirmed cases are related to overseas travel - five were on cruise ships (Artania and Costa Victoria) and one is a close contact of an overseas traveller.
As with all new confirmed cases, contact tracing is underway to ensure all close contacts are notified and advised of the requirement for them to self-isolate.
There are currently 38 confirmed COVID-19 patients in Perth metropolitan hospitals, 14 of whom are in ICU.
To date, 23,412 Western Australians have tested negative for COVID-19. Of these 4,812 are from regional WA.
WA has 251 recovered cases.
Mr Cook said the most recently diagnosed patients are aged between 33 and 70 years old.