You won’t get a cold from the same strain of virus twice in a year.
Antibodies are usually good for at least a year. This is, as Rocky said, “highly irregular.”
https://twitter.com/angie_rasmussen/status/1249689642992951296
“No. There is no data supporting that these “reactivations” are much more than unreliable test results and/or fluctuating viral RNA. The press needs to stop uncritically reporting on “troubling” findings for which no data is available to examine.”
The thread’s a good read.