In July 2021, following multiple large public events in a Barnstable County, Massachusetts, town, 469 COVID-19 cases were identified among Massachusetts residents who had traveled to the town during July 3–17; 346 (74%) occurred in fully vaccinated persons.
vaccination coverage among eligible Massachusetts residents was 69%
Overall, 274 (79%) vaccinated patients with breakthrough infection were symptomatic
Among five COVID-19 patients who were hospitalized, four were fully vaccinated
Source: Centers for Disease Control and Prevention
Any thoughts on this?
To me it seems like the vaccines are doing a great job in this case.