David Michel

The following is a summary of the day-to-day newly reported data on cases and tests in Connecticut. It is important to note that these newly reported updates include data that occurred over the last several days to a week. All data in this report are preliminary, and data for previous dates will be updated as new reports are received and data errors are corrected.

Data updates on breakthrough cases in Connecticut

The Connecticut Department of Public Health is reporting that as of July 28, 2021, a total of 1,133 cases of COVID-19 among fully vaccinated persons in Connecticut have been confirmed. Cases of COVID-19 in fully vaccinated individuals are rare. Of the more than two million people in Connecticut who have completed their vaccine series, less than 0.06% of them have contracted the virus.

For more data on breakthrough cases in Connecticut, see pages 6 and 7 of this week’s extended COVID-19 data report.

Data updates on vaccine administration in Connecticut

The following data represents the total number of COVID-19 vaccines administered in Connecticut, as reported to the state as of Thursday, July 29:

As of Thursday, July 29, Connecticut residents who have received at least one dose by age group includes:

• 96% of those over the age of 65
• 86% of those between 55-64
• 76% of those between 45-54
• 73% of those between 35-44
• 64% of those between 25-34
• 61% of those between 18-24
• 69% of those between 16-17
• 53% of those between 12-15

Source: Coverage data is based on what is reported to CT Wiz, except the estimated coverage for 65 years and older, which is taken from the CDC COVID Data Tracker.

All Connecticut residents over the age of 12 are currently eligible to receive the vaccines. To locate a vaccination clinic, visit ct.gov/covidvaccine.

Data updates on variants in Connecticut

The following data contains the cumulative number of SARS-CoV-2 variants that have been identified among Connecticut residents as of Thursday, July 29:

Variants of concern

• B.1.1.7 (Alpha): 3,392 cases
• B.1.351 (Beta): 36 cases
• P.1 (Gamma): 189 cases
• B.1.617.2/AY.1/AY.2/AY.3 (Delta): 195 cases

Variants of interest

• B.1.427/B.1.429 (Epsilon): 211 cases
• B.1.525 (Eta): 21 cases
• B.1.526 (Iota): 1,804 cases
• B.1.617.1 (Kappa): 2 cases
• B.1.617.3: 0 cases

For more information on variants, see page 9 of this week’s extended COVID-19 data report.

Weekly update of the Department of Public Health’s COVID-19 Alert Map: 4 of 169 municipalities in red zone alert level

The Connecticut Department of Public Health released its weekly COVID-19 Alert Map, which indicates that four municipalities – Bozrah, Hartland, Salem, and Sprague – are currently in the red zone alert level, the highest of the state’s four alert levels.

The color-coded zones include:

• Red: Indicates case rates over the last two weeks of greater than 15 per 100,000 population
• Orange: Indicates case rates between 10 to 14 cases per 100,000 population
• Yellow: Indicates case rates between 5 and 9 per 100,000 population
• Gray: Indicates case rates lower than five per 100,000 population

The weekly alert map is also accompanied by a chart that provides guidance on recommended actions based on the alert levels for individual residents; institutions such as schools, houses of worship, and community organizations; and municipal leaders and local health directors.

The COVID-19 Alert Map is updated every Thursday afternoon and can be found within the Data Tracker page of the state’s coronavirus website at ct.gov/coronavirus.