COVID-19 Vaccinations by Town and Age Group - ARCHIVED

NOTE: As of 2/16/2023, this table is not being updated. For data on COVID-19 updated (bivalent) booster coverage by town please to go to https://data.ct.gov/Health-and-Human-Services/COVID-19-Updated-Bivalent-Booster-Coverage-By-Town/bqd5-4jgh.

This table shows the number and percent of residents of each CT town that have initiated COVID-19 vaccination, are fully vaccinated and who have received additional dose 1 by age group.

All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected.

In the data shown here, a person who has received at least one dose of COVID-19 vaccine is considered to have initiated vaccination. A person is considered fully vaccinated if he/she has completed a primary vaccination series by receiving 2 doses of the Pfizer, Novavax or Moderna vaccines or 1 dose of the Johnson & Johnson vaccine. The fully vaccinated are a subset of the people who have received at least one dose.

A person who completed a Pfizer, Moderna, Novavax or Johnson & Johnson primary series (as defined above) and then had an additional monovalent dose of COVID-19 vaccine is considered to have had additional dose 1. The additional dose may be Pfizer, Moderna, Novavax or Johnson & Johnson and may be a different type from the primary series. For people who had a primary Pfizer or Moderna series, additional dose 1 was counted starting August 18th, 2021. For people with a Johnson & Johnson primary series additional dose 1 was counted starting October 22nd, 2021. For most people, additional dose 1 is a booster. However, additional dose 1 may represent a supplement to the primary series for a people who is moderately or severely immunosuppressed. Bivalent booster administrations are not included in the additional dose 1 calculations.

The percent with at least one dose many be over-estimated, and the percent fully vaccinated and with additional dose 1 may be under-estimated because of vaccine administration records for individuals that cannot be linked because of differences in how names or date of birth are reported.

Town of residence is verified by geocoding the reported address and then mapping it a town using municipal boundaries. If an address cannot be geocoded, the reported town is used. Out-of-state residents vaccinated by CT providers are excluded from the table.

The population denominators for these town- and age-specific coverage estimates are based on 2014 census estimates. This is the most recent year for which reliable town- and age-specific estimates are available. (https://portal.ct.gov/DPH/Health-Information-Systems--Reporting/Population/Town-Population-with-Demographics). This census data is grouped in 5-year age bands. For vaccine coverage age groupings not consistent with a standard 5-year age band, each age was assumed to be 20% of the total within a 5-year age band. However, given the large deviation from this assumption for Mansfield because of the presence of the University of Connecticut, the age distribution observed in the 2010 census for the age bands 15 to 19 and 20 to 24 was used to estimate the population denominators.

Town-level coverage estimates have been capped at 100%. Observed coverage may be greater than 100% for multiple reasons, including census denominator data not including all individuals that currently reside in the town (e.g., part time residents, change in population size since the census), errors in address data or other reporting errors.

Caution should be used when interpreting coverage estimates for towns with large college/university populations since coverage may be underestimated. In the census, college/university students who live on or just off campus would be counted in the college/university town. However, if a student was vaccinated while studying remotely in his/her hometown, the student may be counted as a vaccine recipient in that town.

Connecticut COVID-19 Vaccine Program providers are required to report information on all COVID-19 vaccine doses administered to CT WiZ, the Connecticut Immunization Information System. Data on doses administered to CT residents out-of-state are being added to CT WiZ jurisdiction-by-jurisdiction. Doses administered by some Federal entities (including Department of Defense, Department of Correction, Department of Veteran’s Affairs, Indian Health Service) are not yet reported to CT WiZ.  Data reported here reflect the vaccination records currently reported to CT WiZ.

SVI refers to the CDC's Social Vulnerability Index - a measure that combines 15 demographic variables to identify communities most vulnerable to negative health impacts from disasters and public health crises. Measures of social vulnerability include socioeconomic status, household composition, disability, race, ethnicity, language, and transportation limitations - among others. Towns with a "yes" in the "Has SVI tract >0.75" field are those that have at least one census tract that is in the top quartile of vulnerability (e.g., a high-need area). 34 towns in Connecticut have at least one census tract in the top quartile for vulnerability.

Note: This dataset takes the place of the original "COVID-19 Vaccinations by Town" dataset (https://data.ct.gov/Health-and-Human-Services/COVID-19-Vaccinations-by-Town/pdqi-ds7f), which will not be updated after 4/15/2021. A dataset of vaccinations by town for all age groups is available here: https://data.ct.gov/Health-and-Human-Services/COVID-19-Vaccinations-by-Town/x7by-h8k4.

As part of continuous data quality improvement efforts, duplicate records were removed from the COVID-19 vaccination data during the weeks of 4/19/2021 and 4/26/2021.

注：截至2023年2月16日，本表不再更新。如需查看按城镇更新的COVID-19（二价）加强针接种覆盖率数据，请访问https://data.ct.gov/Health-and-Human-Services/COVID-19-Updated-Bivalent-Booster-Coverage-By-Town/bqd5-4jgh。

本表展示了各康涅狄格州城镇居民中开始接种COVID-19疫苗、已完成全程接种以及按年龄段接受额外剂量1的人数及百分比。

本报告中的所有数据均为初步数据；随着新报告的收到和数据错误的纠正，先前日期的数据将进行更新。

在本数据中，至少接种过一剂COVID-19疫苗的人被视为已开始接种疫苗。若某人已完成初级疫苗接种系列（通过接种辉瑞、诺瓦瓦克斯或莫德纳疫苗2剂或强生疫苗1剂）则被视为已全程接种。全程接种的人群是至少接种过一剂疫苗的人的子集。

完成辉瑞、莫德纳、诺瓦瓦克斯或强生初级系列接种（如上定义）并随后接种了单剂量COVID-19疫苗的人被视为接受了额外剂量1。额外剂量可能是辉瑞、莫德纳、诺瓦瓦克斯或强生疫苗，且可能与初级系列疫苗不同类型。对于完成辉瑞或莫德纳初级系列接种的人，额外剂量1的计数始于2021年8月18日。对于完成强生初级系列接种的人，额外剂量1的计数始于2021年10月22日。对于大多数人而言，额外剂量1是加强针。然而，对于中度或重度免疫抑制的人群，额外剂量1可能作为初级系列的补充。二价加强针接种不包括在额外剂量1的计算中。

由于疫苗管理记录中存在因姓名或出生日期报告方式不同而无法关联的个体，导致至少接种一剂的人数百分比可能被高估，而全程接种及接受额外剂量1的人数百分比可能被低估。

通过地理编码报告的地址并使用市政边界将其映射到城镇以验证居住城镇。如果地址无法进行地理编码，则使用报告的城镇。在州外由康涅狄格州提供者接种的州外居民被排除在表格之外。

这些城镇和年龄特定覆盖率估计的人口分母基于2014年人口普查估计。这是目前可获得的最新年份，其中包含了可靠城镇和年龄特定估计。该人口普查数据按5岁年龄组分组。对于与标准5岁年龄组不一致的疫苗覆盖率年龄分组，每个年龄段均假设为5岁年龄组总人口的20%。然而，鉴于曼斯菲尔德因康涅狄格大学的存在而与这一假设存在较大偏差，因此使用了2010年人口普查中15至19岁和20至24岁年龄组的年龄分布来估计人口分母。

城镇级别的覆盖率估计已设上限为100%。观察到的覆盖率可能超过100%，原因包括人口普查分母数据未包括城镇内目前居住的所有个人（例如，兼职居民，自上次人口普查以来人口规模的变化）、地址数据错误或其他报告错误。

在解释拥有大量大学/学院人口的城镇的覆盖率估计时，应谨慎行事，因为覆盖率可能被低估。在人口普查中，居住在校园内或附近的大学/学院学生会被计入大学/学院城镇。然而，如果学生在其家乡远程学习期间接种疫苗，该学生可能会被计入该城镇的疫苗接种者。

康涅狄格州COVID-19疫苗接种计划提供者有义务向康涅狄格州WiZ（康涅狄格州免疫信息系统）报告所有向康涅狄格州居民提供的COVID-19疫苗接种剂量的信息。正在将州外向康涅狄格州居民提供的疫苗接种剂量的数据添加到康涅狄格州WiZ的按地区划分的司法权范围内。一些联邦机构（包括国防部、司法部、退伍军人事务部、印第安人卫生服务）的疫苗接种数据尚未报告给康涅狄格州WiZ。此处报告的数据反映了目前报告给康涅狄格州WiZ的疫苗接种记录。

SVI指的是美国疾病控制与预防中心的社会脆弱性指数（Social Vulnerability Index）——一种结合15个人口统计变量以识别最易受灾害和公共卫生危机负面影响的社区的衡量指标。社会脆弱性指标包括社会经济地位、家庭构成、残疾、种族、民族、语言和交通限制等。在“Has SVI tract >0.75”字段中标记为“是”的城镇至少有一个位于脆弱性前四分之一的普查区（例如，高需求区域）。康涅狄格州有34个城镇至少有一个位于脆弱性前四分之一的普查区。

注：本数据集取代了原始的“按城镇划分的COVID-19疫苗接种”数据集（https://data.ct.gov/Health-and-Human-Services/COVID-19-Vaccinations-by-Town/pdqi-ds7f），该数据集将在2021年4月15日之后不再更新。所有年龄段按城镇划分的疫苗接种数据集可在此处获取：https://data.ct.gov/Health-and-Human-Services/COVID-19-Vaccinations-by-Town/x7by-h8k4。

作为持续数据质量改进工作的组成部分，在2021年4月19日和4月26日的那周，从COVID-19疫苗接种数据中删除了重复记录。