We need a contest for the last DDFer without testing positive or having any natural antibodies to COVID. Though they'll probably catch it at the trophy ceremony.
I haven't tested for antibodies since Elul, and it was negative then.
I was quite sure I got it after tishrei when my wife and kids had it, just because I had an extremely uncharacteristic runny nose, but tested negative.
Last week I had a version of what everyone else is having, no clue if it was covid, flu, strep, or 1/6ness. Didn't bother testing for anything.