请问：辉瑞第一针和第二针成份和剂量有区别吗？

pandeng1102

请问：辉瑞第一针和第二针成份和剂量有区别吗？

miss123

应该没有。

tiandelan

那为啥很多人说第二针反应大

wzm19581222

多谢！

武汉无汉子

Is there a difference between dose one and dose two of the currently approved COVID-19 vaccines?

THE ANSWER:

The first dose and second dose of your Pfizer or Moderna COVID-19 vaccine should be exactly the same, both chemically and from a dosage standpoint.