Yes, positive tests.
Natural immunity to influenza and the various common colds are fairly short lived.
14 months between bouts of covid seems similar to the common cold to me and the symptoms don’t seem to be any harsher albeit lasting longer than I expected.
I’m at 22 months and like antibodies are still in the 20s where they were eight months ago and I’ve also read that some researchers believe that even the old SARS Covid from seven years ago still offers immunity protection I don’t have to tell you the disinformation over this topic is mind numbing
I do take hydroxychloroquine twice a day for rheumatoid arthritis so there is that distinction between myself and many people and I also used hydroxychloroquine as a prophylactic and therapy when I caught Covid I had not yet been diagnosed with rheumatoid arthritis even though I already hurt severely silly me