3 ms·
We just don't know. Either case (short immunity like the common cold, or permanent immunity) is possible.
by cjbprime 7y ago
We just don't know. Either case (short immunity like the common cold, or permanent immunity) is possible.
- ed_balls 7y agoIt seem the permanent immunity is unlikely https://youtu.be/4EUZEtJHQhE?t=639 https://youtu.be/4EUZEtJHQhE?t=639