VE against SARS-CoV-2 infection of any severity from 7 days onwards after a second dose of vaccine as compared to never vaccinated individuals from 1 January 2022 until 28 February 2022, and by baseline date.

VE against SARS-CoV-2 infection of any severity from 7 days onwards after a second dose of vaccine as compared to never vaccinated individuals from 1 January 2022 until 28 February 2022, and by baseline date.

本数据集针对2022年1月1日至2022年2月28日的研究人群，以未接种疫苗个体为对照，评估疫苗第二剂接种满7天及以后针对任意严重程度的新型冠状病毒（Severe Acute Respiratory Syndrome Coronavirus 2, SARS-CoV-2）感染的疫苗有效性（Vaccine Effectiveness, VE），分析按基线日期进行分层。