tl;dr Valued Colleagues, - RTFM. Read the fine manual. - Positive COVID PCR test is not an indication of Corona Virus Disease. - Weak positive results where the patient has no symptom but the PCR test is positive for COVID is invalid. Get a new specimen and test again. - (Honestly, I am not bullshitting here...) Disease prevalence alters the predictive value of test resutls. - The probability that a person who tests positive is truly infected falls as prevalence of disease falls. - PCR tests do not diagnose disease - they are a diagnostic aid for a doctor to make a medical diagnosis - Read the manual. - If you don't understand the manual, read it more. - if you still don't understand, ask for help - (Big one here: ) Communicate the Ct value (cycle threshold) in the report. I think before this you had to make sure your doctor asked for it.