The vaccines that we have right now are all two-dose vaccines. After the first dose, we see a good immune response that kicks in within about two weeks of that first dose. And it's really the second dose that then boosts that immune response and we see immunity get even stronger after that second dose, again within a shorter period of time after after the second dose. We don't know yet how long immunity lasts from the vaccines that we have at hand right now. We're following people who have received vaccinations to find out whether or not their immune response is durable over time and the length of time for which they're protected against disease. So we're really going to have to wait for time to pass to see just how long these vaccines last.
这是在WHO的网上看到的。作者: aaaaaa 时间: 2021-2-23 15:31:05
狂奔的蜗牛!!! 发表于 2021-2-23 14:51
The vaccines that we have right now are all two-dose vaccines. After the first dose, we see a good i ...