The U.S. Centers for Disease Control and Prevention (CDC) were frank about the infection cases related to the Delta outburst in Massachusetts, revealing three-quarters of the patients were breakthrough situations.

In a study released by the CDC on Friday, July 30, about the COVID-19 outbreak in Provincetown on Cape Cod, Barnstable County of Massachusetts, it is reported that 74% of the new infections were among the vaccinated community, according to Ars Technica.

The analysis looked at 469 CCP (Chinese Communist Party) virus-infected patients linked to the Cape Code outburst between July 3 and 26 and found 346 of them were fully vaccinated. 

The breakthrough cases they surveyed experienced problems such as cough, headache, sore throat, and fever, the CDC alarmingly reporting 79% of them had such issues.

Among the five Massachusetts patients who had to be hospitalized due to severe illnesses caused by the CCP virus, only one of them was unvaccinated but had underlying medical conditions. In the other four patients, two reported having existing medical conditions.

The data noted those surveyed in Massachusetts received the jabs from Pfizer and BioNTech, Moderna, and Johnson & Johnson. 

In a leaked document, the CDC had warned that the Delta variant was as contagious as chickenpox and capable of spreading much faster than the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu, and smallpox.

The department also admitted the breakthrough cases caused by the Delta strain, saying they carry as many viruses in their system as the unvaccinated. 

But that study reassured that the doses are still capable of providing 90% protection against severe illnesses, although vaccinated people will still contribute to the spreading of the lethal virus. 

“Vaccines prevent more than 90% of severe disease, but maybe less effective at preventing infection or transmission,” it reads. “Therefore, more breakthrough and more community spread despite vaccination.”

The CDC from that report said it was why they still recommended the vaccinated to continue putting on face masks and continues to urge more Americans to get inoculated, saying it was “the best defense against the variant.”

“The measures we need to get this under control—they’re extreme. The measures you need are extreme,” said CDC director Dr. Rochelle Walensky in a statement. 

Similar to the CDC’s claims, authors of the Massachusetts report concluded that local health authorities should urge people to put their face masks on in indoor public settings, no matter if they were vaccinated.

The CDC noted that patients infected with COVID-19 reported being at tightly crowded indoor and outdoor gatherings such as pubs, restaurants, guest houses, and rental properties.