Although the Covid tests are fairly accurate I would still always retest. Especially the rapid tests. I've heard of many pos & neg tests being wrong. Heck they are so screwed up here in NJ with many urgent cares just doing covid tests. You make appointment, go at that time and wait in car, they call you and tell you to come to side door, swab you and tell you to wait in car for 20 mins for result, call you in 20 mins and tell you to come to door for the paper with results. So impersonal you feel like a leper.
I even had a friend that waited outside for over 2 hours and they never called him so he left angry. Next morning he gets a call he was positive! Problem was he never got the test!
I think with everyone trying to make money on this "new" disease with rapid tests there will be plenty of mistakes.
If you want 100% true Covid test results get a PCR blood test. This will not only tell if Pos / Neg it will also show the viral load.
Anyway to answer your question I would rely on your parents 2nd test and they are fine. If you never had Covid test yourself for the "antibodies", you may of had Covid and didn't even know it. The antibody test is a blood drawer and very accurate. If you test Pos for the antibodies you should be able to visit your parents without worrying about giving it to them. Also make sure they are taking 5000 IU's of D3 & Zinc everyday as a preventive measure. I believe D3 is the most important thing to prevent or after you get it to lessen the severity.
I will be posting a cocktail of supplements that has work for me and family members after we got Covid.
Like I said ONLY my opinion and this will be the last respond to you. Your are not a doctor either and entitled to your opinion as well.
No I don't know more than doctors on front lines but I do know doctors will hand you a piece of paper that you are positive and send you on your way with NOTHING, NO hope. Most Doctors don't believe in supplements. Just within the last several years they started to test for D3 when it was known for years D3 was very important to overall health. They would much rather write you a prescription and get their kick back from the pharm companies. I'll say again 5,000 IU's is necessary for "most" to get to a healthy level than reduce to 2, 0000-3,000 IU's.
Each person has to make their own decisions. I can only tell you what kept 5 people I know, including myself from having severe symptoms and ending up on a vent in hospital!
What type of test is the mail in tests? I believe they probably use PCR (Molecular test) at Kaiser as it is a very sensitive and specific test. At home tests may be an ELISA, test which is not as sensitive. However, as mentioned above, I would trust the PCR test . The only reason that would not be accurate is either a blatant mix up (which happens but not that often), or the swab collection wasn't good. The swab collection is usually the biggest problem.
here is just one example from a top doctor website regarding D3 & covid. This confirms the importance of D3 & covid. there are pleanty more doctor & scientists reviews online. 80% of covid patients are low in D3. Those are good enough odds for me to take it.
guitar rox, sounds like you have a good doctor knowing the importance of D3, especially when it comes to Covid.
As far as doctors getting kick backs (maybe a poor choice of words) it's not like the old days with trips, concerts, etc. after FDA stopped it. But I have 2 nephews in the Pharm business. They bring food to doctors offices in order to see the doctor for 5 mins a month and few times a year have lavish dinners where my nephews have to "briefly" speak about their drug. This is what I meant by kick backs. This is enough incentive for docs to write more scripts! sad but true.
Forgot to post this interesting peer review where there are benefits of treating the elderly in nursing homes with D3. There are many studies & reviews like this. A simple harmless vitamin that is dirt cheap. Can't hurt to take it to prevent & possibly treat? But again have to decide for yourself. Do your own research, Knowledge is power!
One excerpt from article:
Vitamin D and COVID-19 recovery
One approach is to identify and treat vitamin D deficiency, especially in high-risk individuals such as the elderly, patients with comorbidities, and nursing home residents, who are the main target population for the COVID-19, said study co-author José L. Hernández, PhD, of the University of Cantabria in Santander, Spain.
He said people at high risk for COVID-19 older adults, those with underlying conditions, and people in nursing homes can be treated with vitamin D.
Vitamin D treatment should be recommended in COVID-19 patients with low levels of vitamin D circulating in the blood since this approach might have beneficial effects in both the musculoskeletal and the immune system, Hernández said in a statement.