Our neighbor told us 2 days ago that their 20-year old daughter, a college sophomore, had recently went to the ER for an unrelated condition. They tested her for COVID while she was there and it came back positive. This kid came down with COVID back in JAN 2021, was sent home, and quarantined there. Since then she has had the 2 clot shots and the booster. Her only current symptom is a headache. So she had acquired immunity and "vaccine"/ gene therapy immunity, at least for COVID alpha-delta.
You mentioned that she recovered from Covid in January 2021.
How do we know that her acquired immunity now is not from that past infection and recovery?