A friend of mine was detected COVID-19 positive through PCR one month back. He was asymptotic as per doctors and had no symptoms. He quarantined himself and increased his intake of water. After 1 month, he got himself tested and the result was negative. His antibodies value was +7.0.
My question: Is it possible to get COVID-19 false positive ? 2) Is it possible that a person comes as COVID-19 positive due to bad sampling technique or something ? 3) Given the antibody value as 7.0. Is it possible that the same person gets COVID-19 positive again ?
(My theory is that COVID-19 will try to come to his body but his antibodies value is so high that it won't affect him.)