Experts are advising caution for those who have been infected with Omicron

More than 300,000 Massachusetts residents who are vaccinated against the virus got breakthrough COVID infections during the height of the Omicron surge. 

So does this mean they're "super immune"? And could that help us speed up the return to normal? 

My colleague Jessica Bartlett reports that vaccinated people who have recently recovered from a natural infection have among the highest degree of protection, according to scientists. But it's still not clear how much of that immune protection is enough to ward off future infection. 

Even so, as the Omicron surge winds down, a sense of hope is emerging that the coming months may bring something resembling normal, evident in record bookings at New England inns, a steady stream of tourists in Boston, and reservations at Boston restaurants and clubs.