I think May is due to (not necessarily antibody-dependent) infection enhancement occurring within days of dose 1, if a person becomes exposed.
But only if there was a wave at the time.
I've said this many times, it doesn't quite seem to reach people. It explains the US summer disaster of 2021, it explains maternal deaths and it explains what you are seeing.
If these people were miscategorized, then so were the single dosed and you should see them same thing in the unvaccinated.
I think May is due to (not necessarily antibody-dependent) infection enhancement occurring within days of dose 1, if a person becomes exposed.
But only if there was a wave at the time.
I've said this many times, it doesn't quite seem to reach people. It explains the US summer disaster of 2021, it explains maternal deaths and it explains what you are seeing.
If these people were miscategorized, then so were the single dosed and you should see them same thing in the unvaccinated.