The Martha’s Vineyard Hospital reported one new case of coronavirus on the Island Friday after posting its daily update in the morning, bringing the total number of cases reported on the Island to 97.

Meanwhile, Nantucket has recorded one of the highest case incidence rates in the state over the past two weeks, putting it in the red zone according to the state Department of Public Health. More than 100 residents have now tested positive on Nantucket after a recent case spike. 

The new case reported on the Vineyard is a female in her 70s, according to a daily demographic report released by the Island boards of health. Tisbury health agent Maura Valley said in an email that the case was reported after the hospital’s online case update, which was current as of 9:30 a.m. this morning.

There are now three active coronavirus cases on the Island, including the new case reported Friday. The two other active cases were reported between Sept. 6 and Sept. 12.

The new case Friday is the first laboratory positive case reported this week, and the sixth since the beginning of September.

The Martha’s Vineyard Hospital, which is mainly testing symptomatic patients and their close contacts for the virus, has now reported 46 positive tests for the virus. TestMV, which is offering free coronavirus testing to asymptomatic patients, has reported 26 positive cases, bringing the total number of laboratory positive cases on the Vineyard to 72 since the pandemic began.

Another 24 patients have tested positive for viral antibodies or been symptomatically diagnosed with the virus.

According to an expanded update provided weekly by the boards of heath, 25 individuals who have tested positive for the virus - or 34 per cent of the total - are linked to another case through a family or household group. That percentage is down from a high near 70 per cent when the outbreak began.

Of the confirmed positive cases, 27 are male and 46 are female. The age breakdown is as follows: nine under 20; 16 in their 20s; 13 in their 30s; 4 in their 40s; 17 in their 50s; 10 in their 60s; and four over the age of 70.

On Nantucket, case numbers have seen an alarming spike over the past ten days, with at least 41 new cases reported at Nantucket Cottage Hospital. The state has officially deemed Nantucket a “red” community, with its two-week average case rate of 18.9 people per 100,000 residents well above the eight-case threshold.

None of the six Vineyard towns qualified for one of the state’s color-coded community ratings. Nantucket was the only community listed as red on the Cape and Islands.

Two new cases were reported on Nantucket Friday. Health agent Roberto Santamaria said in an emergency meeting Monday that the majority of the cases were tied to the landscaping, construction and cleaning service industries, but not necessarily from commuters.

Although the cases occurred largely over Labor Day weekend, Mr. Santamaria said, officials were not sure earlier this week if the surge had been contained.

Statewide, the Department of Public Health reported 431 new cases and eight new deaths on Friday. More than 124,000 Massachusetts residents have now tested positive for the virus, and 9,059 have died.

There have been no deaths on Martha’s Vineyard. One patient in his eighties died on Nantucket in early April.