在美国疫苗推出的最初几个月，几乎每个人都服用了第二剂辉瑞或莫德纳疫苗根据一份新的报告，在适当的时间范围内。
虽然经常会有一个摄取量下降对于疫苗这需要一剂以上的疫苗，近90%的人有足够的时间接受第二剂新冠肺炎疫苗来自疾病控制和预防中心的数据周一发布。
CJ Gunther/EPA通过Shutterstock
注册护士安吉拉·比科洛给一名雷佛人注射了一剂现代新冠肺炎疫苗
为了得出这个结论，疾控中心的研究人员分析了2020年12月14日至2021年2月14日期间接受第一剂辉瑞或莫德纳疫苗的4000万人的数据。
在对1240万人进行的一项分析中，88%的人已经完成了两种疫苗系列，8.6%的人没有接受第二剂疫苗，但仍在接受第二剂疫苗的期限内。虽然接受第二剂药物的推荐窗口是在第一剂辉瑞后三周，对于莫德纳来说是四周，但在有人被认为完全错过一剂药物之前，还有一个更长的窗口。
该报告称:“尽管第二剂应尽可能在推荐的间隔时间内给药，但当延迟不可避免时，可在第一剂后42天内给药。”
在第一次分析中，只有3.4%的人在42天的窗口之外。
弗雷德里克·j·布朗/法新社，通过盖蒂图像
人们在一个针对vuln的公共住房项目弹出式网站上接受辉瑞新冠肺炎疫苗
报告称，在对1420万人的第二次分析中，95.6%的人在建议的42天内接受了第二次剂量，尽管这一比例因司法管辖区而异。
虽然研究人员称这些数据“令人放心”，但他们也指出了接受疫苗的最初人群的局限性。由于卫生保健工作者和疗养院居民和工作人员是第一优先群体，而且这些疫苗接种通常发生在他们的工作场所，因此该群体可能比一般人群更容易遵守疫苗接种时间表。疫苗推广的第一波也可能包括那些高度渴望接种两种疫苗的人。
美国现在有3900万人，即总人口的11.8%，已经完全接种了疫苗，根据疾病预防控制中心的说法，意味着他们已经接受了两剂辉瑞或莫德纳，或一剂强生单次注射疫苗。
Almost no one is missing their 2nd vaccine dose: CDC report
In the initial months of the United States' vaccine rollout, almost everyone got their second dose of the Pfizer or Modernavaccinewithin the appropriate time frame, according to a new report.
Although there's often adrop-off in uptakeforvaccinesthat require more than one dose, nearly 9 in 10 people with sufficient time to receive their second COVID-19 vaccine dose followed through, according todata from the Centers for Disease Control and Preventionreleased on Monday.
To come to that conclusion, CDC researchers analyzed data from 40 million people who received a first dose of either the Pfizer or Moderna vaccine between Dec. 14, 2020 and Feb. 14, 2021.
In one analysis of 12.4 million people, 88% had completed the two-vaccine series, with 8.6% not having received the second dose, but still being within the window to do so. While the recommended window for receiving the second dose is three weeks after the first Pfizer and four weeks for Moderna, there's a longer window before someone is considered to have missed a dose entirely.
"Although the second dose should be administered as close to the recommended interval as possible, it may be administered up to 42 days after the first dose when a delay is unavoidable," according to the report.
In the first analysis, only 3.4% of people fell outside of that 42-day window.
In a second analysis of 14.2 million people, 95.6% received their second dose within that recommended 42-day time frame, although that percentage varied by jurisdiction, the report said.
While the researchers called the data "reassuring," they also pointed to limitations regarding the initial group of people who received vaccines. Since heath care workers and nursing home residents and staff were the first priority group, and those vaccinations often occurred in their workplaces, it might have been easier for that group to adhere to a vaccine schedule than the general population. The first wave of the vaccine rollout also likely included people who were highly motivated to get both shots.
There are now 39 million people in the U.S., or 11.8% of the population, who are fully vaccinated,according to the CDC, meaning they've received two doses of Pfizer or Moderna, or one dose of the single-shot Johnson & Johnson vaccine.
