WA has recorded another 35 coronavirus cases overnight including five from regional Western Australia.
It includes the first case in the Kimberley, Mid West, Wheatbelt and Great Southern, and brings the states total to 175.
Health Minister Roger Cook said the WA Government is not naming which regional towns or cities the coronavirus cases live in, citing privacy reasons. Instead, only the regions are named.
He said the new patients range in age from four to 76 and include two young children - aged four and 10 - from the same family.
Of the 35, eight were passengers on the Ruby Princess cruise ship and four were from the Ovation of the Seas.
Eleven patients are in hospital, including four who are being treated in intensive care.
Mr Cook said the government had moved on to an "aggressive outreach" program and was widening its testing scope to target geographically localised areas where community transmission of the disease has been observed.
He said any cruise ship passengers would be tested, and urged people to cancel their Easter holiday plans and not travel within the state.
He said COVID-19 patients in regional WA who became seriously ill could be transferred to Perth hospitals by the Royal Flying Doctor Service.
Mr Cook again warned that beaches and parks could be closed if locals did not comply with social distancing measures.