Vaccine delivery improving, with congestion

 A statewide vaccine appointment list is a good idea, but it can crash:

Massachusetts Vaccination Website Crash: What Went Wrong?  The state thinks the high volume of traffic may have been the cause, but they still aren't 100% certain

"Massachusetts’ COVID-19 vaccine appointment portal temporarily crashed Thursday morning as more than 1 million additional state residents became eligible to schedule a shot.

"Gov. Charlie Baker said the administration had run through different scenarios to try to avoid problems with the vaccine portal. He said people in the administration are in the process are trying to determine what happened.

"The state on Thursday for the first time began allowing those age 65 and older, people with two or more certain medical conditions, and residents and staff of low income and affordable senior housing so sign up for a vaccine shot. But it came with a warning that it could take up to a month to book an appointment.

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"As of Friday morning, the issues appeared to have been resolved and the website seemed to be working properly. But vaccination appointments remained hard to find.

"People who went to vaxfinder.mass.gov on Friday to book an appointment were told none were available. A statement from state health officials said “a small number of appointments for other locations,” including pharmacies and regional collaboratives, would be posted over the next few days."