Boston College is now reporting 46 undergraduates have tested positive for Covid-19 this week.
With 1,228 students tested since Monday, that's a positivity rate of 3.7% for the week, or nearly four times the current statewide testing numbers.
Until this morning, BC had reported 3 positive tests out of 107 tests given undergraduates for the week. The college reports tests of faculty, staff and others on campus have all been negative.
BC posted the latest numbers after the Globe reported that 13 members of the BC swim and diving teams had tested positive for the virus.
The college reports it currently has 28 students in college-controlled isolation housing and another 40 in isolation at home.
In August, the BPDA gave BC permission to rent the entire 74-room Hotel Boston - a motel on Mt. Hood Avenue in Brighton that a developer wants to tear down - and to use some of its rooms as quarantine spaces for both students who test positive and students who are awaiting test results after coming into close contact with people who have tested positive.
Since Aug. 16, when BC began formal testing, some 83 people have tested positive out of 23,850 - with all but two of the people being undergraduates.
BC requires people on campus to fill out a daily symptom check and is conducting "extensive asymptomatic and high-contact, randomized surveillance testing each week."