Very likely a false positive. Musk had a couple.
You don’t know that.
Nobody “knows“ anything about the virus or the vaccines.
The “experts” have been wrong 100% of the time.
Everyone is just guessing.
An old friend's son worked with a guy who was exhibiting virus-like symptoms. They both had Covid tests and tested negative. The co-worker continued to exhibit the symptoms. Both men once again got tested. Both again negative. A third test was eventually given, and both men tested positive.
My friends, their three sons, and their families always vacation together each summer. Last summer they rented a place on the ocean in Delaware. The positive result from that third test took so long that they weren't sure the one son would be able to go on vacation. Finally, the results came back just days ahead of the planned trip, and the doctor told him that since the test results had taken so long, that he wasn't likely infectious anymore, and told him to go on vacation. They all spent a week together on that trip, and no one, including the grandchildren contracted the virus.
My friends have since received the vaccine, mostly because they like to travel internationally each year. Frankly, I wouldn't go anywhere overseas anymore, and glad I got my two lousy trips to Europe out of the way years ago, and will never have to board a plane ever again.
Up until March 2020, when the local casino run by the Oneida Nation here in central New York closed, I used to meet them once a month for the buffet and then we'd play the slot machines for a few hours. When the casino reopened, they called me to see if I was interested in meeting them, and I told them then, that I won't go back until I don't have to wear a mask. They've called me from time to time, called a week or so ago, and I told them again, that I won't go if I have to wear a mask. The best thing about the casino was the buffet they had, but since this crap all started, buffet dining doesn't exist, and being in New York State, I doubt it will ever come back.