NBC Boston Icy Conditions Cause Slick Roads, Power Outages and COVID Vaccine Cancellations The weather has been freezing up a statewide vaccination process that so many wish would run fluidly. Massachusetts is behind in administering vaccinations, according to a supply chain expert at Northeastern University, but the large-scale effort can help. “I think mass vaccination sites are really important because you want to maximize throughput in supply chain […]