“Unfortunately, I think if there’s a retrial on life vs. death, it’s going to be very similar to what we already experienced,” said Daniel Medwed, a professor of law and criminal justice at Northeastern University. “And it would reopen a lot of wounds not only for victims, but for many Bostonians.”

Most people who are tested for the virus do not receive results within the 24 to 48 hours recommended by public health experts to effectively stall the virus’s spread and quickly conduct contact tracing, according to a new national survey by researchers from Harvard University, Northeastern University, Northwestern University and Rutgers University.

More than 63 percent of people nationally had to wait longer than two days to get their results back, according to the survey released Monday by researchers from Northeastern University, Harvard University, Rutgers University, and Northwestern University.

“If we have any hope to contain COVID-19, it will be because strategies like contact tracing have worked. Contact tracing will only work well if there’s a fast turnaround on testing,” said David Lazer, a Northeastern University political science and computer science professor who was one of the researchers who conducted the study.

Daniel Medwed, a professor of law and criminal justice at Northeastern University, told Boston.com he’s not surprised by the decision.

“Somebody’s got to … reemploy people once this thing is over, and they’re going to need capital, and the banking system is the major source of that,” said William Dickens, a professor and chair of the … economics department at Northeastern University.

Sam Scarpino, an expert in epidemiology and assistant professor at Northeastern University, said the trajectory is concerning.

Sam Scarpino, assistant professor in the Network Science Institute at Northeastern University, also said Massachusetts needs to go back into Phase 2 so transmission rates can stay low and kids can go back to school.

The state should take these numbers as evidence that it’s time to roll back reopening, said Samuel Scarpino, a Northeastern University epidemiologist.

The numbers are enough for Northeastern University assistant professor and Director of Emergent Epidemics Lab Samuel Scarpino to think the state should return to Phase 2.

WGBH Morning Edition Host Joe Mathieu spoke with Northeastern University law professor and WGBH News legal analyst Daniel Medwed about the reversal.

Joan Fitzgerald is a professor in the School of Public Policy & Urban Affairs at Northeastern University.