> And theoretically, the test would give a positive result on some bat corona viruses, but they do not affect humans. What if I have flu and that corona virus

> And theoretically, the test would give a positive result on some bat corona viruses, but they do not affect humans. What if I have flu and that corona virus which do not affect humans. People will think I have COVID. Edit: The test developed was done against 75 people with various other diseases as listed below to find out the false positive rate. With the 75 samples (having listed diseases), the false positive rate was 0. Clinical samples with known viruses Number of samples tested in all three assays HCoV-HKU1 2 HCoV-OC43 5 HCoV-NL63 5 HCoV-229E 5 MERS-CoV 5 Influenza A (H1N1/09) 6 Influenza A (H3N2) 5 Influenza A(H5N1) 1 Influenza B 3 Rhinovirus/Enterovirus 3 Respiratory syncytial virus (A/B) 6 Parainfluenza 1 virus 3 Parainfluenza 2 virus 3 Parainfluenza 3 virus 3 Parainfluenza A or -B virus 5 Human metapneumovirus 3 Adenovirus 3 Human Bocavirus 3 Legionella spp. 3 Mycoplasma spp. 3 Total clinical samples 75 I hope we didn't any other major common virus, and also is 75 a big enough number to say that the false positive rate is definitely 0?