The Tri-Town had 33 new cases of covid in the week leading up to Sept. 16 — the highest single week total since February, when vaccinations had only recently been rolled out.

Of the 33 new cases, eight came from Marion, 17 from Mattapoisett and eight from Rochester, according to state covid data.

The Tri-Town has now had over 20 new covid cases in six of the last seven weeks.

A handful of cases were also detected in local schools in the week leading up to Sept. 16, according to Massachusetts Department of Elementary and Secondary Education.

Among students, Rochester Memorial School reported four cases, Mattapoisett had three cases including Old Hammondtown School and Center School, Old Rochester had two cases including the high school and junior high, while Marion’s Sippican School did not record any cases.

None of the schools reported any cases of staff members testing positive. 

Vaccination rates remained largely the same from last week.

In Marion, vaccination rates held steady for both the fully vaccinated and for those who have received at least one dose, remaining at 78% and 86% respectively.

Mattapoisett’s vaccination rates also remained the same from last week with 78% fully vaccinated and 86% with at least one shot.

For Rochester, the fully vaccinated percentage increased to 65% but the single dose percentage stayed flat at 77%.

State covid data is released every Thursday.