Most people who are infected with SARS-CoV-2, the virus that causes COVID-19, develop an immune response within the first few weeks, but we are still learning how strong and lasting that immune response is, and how it varies between different people.
11022
已经感染SARS-CoV-2的人仍然应该接种疫苗，除非其卫生保健服务提供者另有说明。
People who have already been infected with SARS-CoV-2 should still get vaccinated unless told otherwise by their health care provider.
11023
即使你以前已经感染过，疫苗也能增强免疫反应。
Even if you’ve had a previous infection, the vaccine acts as a booster that strengthens the immune response.
11024
还有一些人曾经有二次感染SARS-CoV-2的情况，这使接种疫苗变得更加重要。
There have also been some instances of people infected with SARS-CoV-2 a second time, which makes getting vaccinated even more important.
11025
接种疫苗期间会发生什么
What to expect duringvaccination
11026
医疗专业人员可能最适合建议个人是否以及何时应该接种疫苗。
Medical professionals can best advise individuals on whether or not, and when, they should receive a vaccine.
11027
由卫生工作者施打疫苗，接种者将被要求在离开接种地点之前留观15至30分钟。
A health worker will administer the vaccine, and the person receiving it will be asked to wait for 15–30 minutes before leaving the vaccination site.
11028
这样便于卫生工作者观察接种者在接种疫苗后是否有任何意外反应。
This is so that health workers can observe individuals for any unexpected reactions following vaccination.
11029
与所有疫苗一样，COVID-19疫苗也会引起轻微到中度的副作用，如注射部位出现低热、疼痛或发红。
Like any vaccine, COVID-19 vaccines can cause mild-to-moderate side effects, such as a low-grade fever or pain or redness at the injection site.
11030
这些情况应该在几天内自行消失。
These should go away on their own within a few days.