That sounds simular to this story from Oct 13 2020, almost a year ago.
"Nevada man's COVID-19 reinfection, the first in the US, is 'yellow caution light' about risk of coronavirus"
https://www.usatoday.com/story/news/hea ... 965917002/
Nevada man's COVID-19 reinfection, the first in the US, is 'yellow caution light' about risk of coronavirus
Karen Weintraub
USA TODAY
"An otherwise healthy 25-year-old Nevada man is the first American confirmed to have caught COVID-19 twice, with the second infection worse than the first.
He has recovered, but his case raises questions about how long people are protected after being infected with the coronavirus that causes the disease, and potentially how protective a vaccine might be."
Now the CDC calls reinfection after having Covid, "rare".
From the CDC
"COVID-19
To maximize protection from the Delta variant and prevent possibly spreading it to others, get vaccinated as soon as you can and wear a mask indoors in public if you are in an area of substantial or high transmission.
Back to COVID-19 Home
Reinfection
Updated Aug. 6, 2021
Cases of reinfection with COVID-19 have been reported, but remain rare.
In general, reinfection means a person was infected (got sick) once, recovered, and then later became infected again. Based on what we know from similar viruses, some reinfections are expected. We are still learning more about COVID-19. Ongoing COVID-19 studies will help us understand:
How likely is reinfection
How often reinfection occurs
How soon after the first infection can reinfection take place
How severe are cases of reinfection
Who might be at higher risk for reinfection
What reinfection means for a person’s immunity
If a person is able to spread COVID-19 to other people when reinfected"