Of new COVID-19 cases on Cape Cod, 74% have been among fully vaccinated people, according to a report issued Friday by the Centers for Disease Control and Prevention.
Testing indicated the delta variant of the virus accounted for 90% of specimens from 133 patients, the report indicated.
New cases have been recorded in Barnstable County, particularly in Provincetown, this month. The CDC in its report said that 469 cases of COVID-19 have been associated with multiple summer events and large public gatherings in a town in Barnstable County.
“Persons with COVID-19 reported attending densely packed indoor and outdoor events at venues that included bars, restaurants, guest houses, and rental homes,” the report read.
On July 3, the state Department of Public Health reported a 14-day average COVID-19 incidence of zero cases per 100,000 persons per day in residents of the town in Barnstable County. By July 17, that average increased to 177 cases per 100,000 persons per day.
Among the 469 cases in Massachusetts residents, 301 (87%) were male, with a median age of 42, the CDC said. Vaccines received by those with breakthrough infections were Pfizer-BioNTech (159; 46%), Moderna (131; 38%), and Janssen (56; 16%), the report indicated.
The most common signs or symptoms of those with breakthrough cases were cough, headache, sore throat, myalgia and fever.
Overall, 274 vaccinated patients with breakthrough infections were symptomatic. Among five patients who were hospitalized with the virus, four were fully vaccinated, the CDC said. No deaths were reported.
As of Friday, Provincetown Town Manager Alex Morse said there have been 220 cases among town residents, including 103 active cases. Of the total cases, 73% are among vaccinated individuals and 89% are men with a median age of 39.
The CDC suggested that jurisdictions consider prevention strategies like wearing masks in indoor public settings, particularly during large public gatherings.
“The delta variant of SARS-CoV-2 is highly transmissible,” the CDC report read, “vaccination is the most important strategy to prevent severe illness and death.”
New guidance from the CDC suggests that residents of Barnstable, Bristol, Dukes and Suffolk counties in Massachusetts should return to wearing masks indoors in public.
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