The number of COVID-19 cases, in patients who are Maine residents, rose to 70, according to the Maine Center for Disease Control and Prevention website on Saturday.

This is up from 56 cases on Friday.

Forty-three of the 70 cases are in Cumberland County, followed by eight in York. Several counties each have four cases including Lincoln County.

The CDC reports Friday that 2,264 tests in Maine have also been taken and shown no virus.

Three of the 70 people diagnosed have recovered.

Twenty-two of the Maine patients are in their 60s, 16 are in their 50s, and there 13 each in their 40s and 70s with fewer in the remaining age groupings.

None of the positive cases are classified as Knox County as of Saturday, March 21. However, the state CDC has acknowledged that it classifies cases based on the permanent state of residence of the patient so if people from another state come to their seasonal homes in Maine and are diagnosed there, they will not show up on the state statistics.

There was one person — a 35-year-old man — who was listed March 17 as having COVID-19 in Knox County. He was removed from the list March 18 because his permanent residence is out-of-state.

And on Friday, March 20, Dr. Nirav Shah, director of the Maine CDC, said there were three additional people diagnosed in Maine since Thursday but they are not counted in Maine's numbers because they are not Maine residents. He did not specify where those people are currently.

"If Knox County residents are at elevated risk of exposure to COVID-19, the Maine CDC will issue an alert. Right now, following the guidance put forth by Governor Mills and the Maine CDC is the best way for Knox County residents to reduce their risk and limit potential spread of the virus," CDC spokesman Robert Long stated March 18.

"To avoid double counting, the individuals are being listed in the states where their primary residences are located. But the patients have not been moved. The individuals, including one who was originally listed as a Knox County resident but who was then reclassified as a resident of another state, are still being cared for here," he said.

Knox County has a greater percentage of seasonal residences than the state average. According to the 2010 Census, 16% of housing units in Maine were seasonally occupied. In Knox County, the percentage is slightly more than 20%.

On North Haven, for example, 65% of residences are seasonal, according to the 2010 Census. The North Haven Select Board voted March 15 to prohibit non-residents from coming to the island. St. George has the most seasonal homes at 762 which is about 34% of all residences in the town.

Dr. Shah was asked during Thursday's media briefing about people from out-of-state who come to Maine. He said he has been in Maine for nine months and found it the most welcoming place he has been. He said he hopes it remains that way.

Waldo County also is listed as having no cases.