COVID-19 Primary Series Completion, Booster Dose Eligibility, and Booster Dose Receipt by Age, United States

This site provides historical data beginning June 22, 2022, for the visualization presented on <a href="https://covid.cdc.gov/covid-data-tracker/#vaccinations" target="_blank">COVID-19 Data Tracker’s “Vaccinations in the United States”</a> site titled “Primary Series Completion, Booster Dose Eligibility, and Booster Dose Receipt by Age, United States”.

<b >Fully Vaccinated / Completed Primary Series:</b> <ul><li> For surveillance purposes, COVID Data Tracker counts people as being "fully vaccinated" or as having "completed a primary series" if they received two doses on different days (regardless of time interval) of the two-dose mRNA series or received one dose of a single-dose vaccine. When the vaccine manufacturer is not reported, the recipient is considered fully vaccinated with two doses.</li></ul><b>First Booster Dose:  </b><ul><li>For surveillance purposes, the count and percentage of people who received a first booster dose includes anyone who is fully vaccinated and has received another dose of COVID-19 vaccine since August 13, 2021. This includes people who received a first booster dose and people who received an additional primary series dose as this metric does not distinguish if the recipient is <b><a href='https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommendations/immuno.html' target="_blank"> immunocompromised and received an additional dose</a></b>.</li><li><b> First booster dose eligibility: </b><ul><li>CDC counts people as being <b>" <a href="https://www.cdc.gov/coronavirus/2019-ncov/vaccines/booster-shot.html" target="_blank">eligible for a first booster dose</a>"</b> if it has been at least 5 months since completion of a Pfizer-BioNTech or Moderna primary series or at least 2 months since receipt of a Janssen (Johnson & Johnson) singe-dose vaccine. </li></ul></li></ul>
<b>Second Booster Dose:</b><ul><li>For surveillance purposes, the count and percentage of people who received a second booster dose includes anyone who is fully vaccinated and has received two subsequent doses of COVID-19 vaccine since August 13, 2021. This includes people who received two booster doses and people who received one additional dose and one booster dose.  </li><li>The count of people who received a second booster dose and the percentage of people with a first booster who received a second booster dose does not account for whether a person is <b><a href='https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommendations/immuno.html' target="_blank">immunocompromised or time interval since first booster dose</a></b>. </li><li><b>Second booster dose eligibility: </b><ul><li>CDC counts people as being  <b>"<a href="https://www.cdc.gov/coronavirus/2019-ncov/vaccines/booster-shot.html" target="_blank"><b>eligible for a second booster dose</b></a>" </b> if it has been at least 4 months since receiving a first booster dose. </ul></li></li><li><b>Limitations to counting people with a second booster dose: </b>
<ul><li>Due to the aggregate vaccination record reporting method used by Idaho for its residents under the age of 18 years and by Texas for all its residents, CDC counts all 4th doses received by these populations as a second booster dose. This includes immunocompromised individuals who received a three-dose primary series and only one booster dose. This limitation may lead to an undercount of people who received the single-dose J&J/Janssen vaccine as their primary series and two booster doses.</li></ul>
</li></ul>Data represents all vaccine partners including jurisdictional partner clinics, retail pharmacies, long-term care facilities, dialysis centers, Federal Emergency Management Agency and Health Resources and Services Administration partner sites, and federal entity facilities.

本平台自2022年6月22日起提供历史数据，旨在展示于<a href="https://covid.cdc.gov/covid-data-tracker/#vaccinations" target="_blank">美国COVID-19数据追踪器“疫苗接种情况”</a>网站所呈现的可视化数据，该网站标题为“按年龄划分的美国初级系列接种完成情况、加强针接种资格及加强针接种情况”。<b>完全接种疫苗/完成初级系列：</b>为了监控目的，COVID数据追踪器将已接受两种不同日子的两剂mRNA疫苗系列或接受单剂疫苗一剂的人士视为“完全接种疫苗”或“完成初级系列”。当未报告疫苗制造商时，接收者被视为接受了两种剂量的完全疫苗接种。<b>首次加强针：</b>为了监控目的，首次加强针接种的人数和百分比包括自2021年8月13日起已完全接种疫苗并接受了COVID-19疫苗另一剂的人士。这包括首次加强针接种者以及作为额外初级系列剂量而接种的人士，因为此指标无法区分接收者是否为<b><a href='https://www.cdc.gov/coronavirus/2019-ncov/vaccines/recommendations/immuno.html' target="_blank">免疫功能低下并接受了额外剂量</a></b>。<b>首次加强针接种资格：</b>CDC将完成Pfizer-BioNTech或Moderna初级系列至少5个月或自接种Janssen（强生）单剂疫苗以来至少2个月的人士视为<b><a href="https://www.cdc.gov/coronavirus/2019-ncov/vaccines/booster-shot.html" target="_blank">有资格接种首次加强针</a></b>。<b>第二次加强针：</b>为了监控目的，第二次加强针接种的人数和百分比包括自2021年8月13日起已完全接种疫苗并接受了两次后续COVID-19疫苗的人士。这包括接受了两次加强针和接受了一次额外剂量及一次加强针的人士。第二次加强针接种人数和首次加强针接种者中接受第二次加强针的百分比不计入是否免疫功能低下或自首次加强针以来时间间隔。<b>第二次加强针接种资格：</b>CDC将自首次加强针以来至少4个月的人士视为<b><a href="https://www.cdc.gov/coronavirus/2019-ncov/vaccines/booster-shot.html" target="_blank"><b>有资格接种第二次加强针</b></a></b>。<b>第二次加强针计数限制：</b>由于爱达荷州对其18岁以下居民和德克萨斯州对其所有居民所使用的汇总疫苗接种记录报告方法，CDC将这些人群接受的第四剂疫苗全部计为第二次加强针。这包括接受了三剂初级系列和仅接受一次加强针的免疫功能低下个体。此限制可能导致接受了单剂量J&J/Janssen疫苗作为其初级系列和两次加强针的人士被低估。数据代表所有疫苗合作伙伴，包括辖区合作伙伴诊所、零售药店、长期护理设施、透析中心、联邦紧急事务管理署和卫生资源和服务管理局合作伙伴站点以及联邦实体设施。