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madamesilverspurs

(15,800 posts)
Wed May 27, 2020, 04:38 PM May 2020

Got tested ---

The test is required for those of us wishing to participate in the re-opening Pulmonary Rehab program at the hospital.

My results: Negative for Covid, positive for anti-bodies. So, at some point, I did have the virus.

My respiratory therapist is amazed that I'm still standing, given my history. But it's my guess that how I've been dealing with other health issues has contributed to that test result. Some of the covid symptoms are things I already routinely experience, primarily shortness of breath. When that particular condition worsened a bit last fall, it was attributed to advancing COPD. And body aches and pains are already familiar with aging and arthritis. I didn't have fever, or cough, or sore throat, or headache; and having had pneumonia in the past, had any indicator of that showed up I'd have blasted into the nearest ER.

So my conversation with the RT concluded that I should continue with the self-imposed distancing, necessitated by side effects of some meds, that I've been practicing for a couple of years. I can still go to the Safeway for scrips and food, and continue wearing a mask whenever I go out of my apartment. And I will start back with the rehab next week; the hospital has only one entrance open, and they require a mask and temp check before letting anyone in.

Meanwhile, our county commissioners (much in the news lately, and not in a good way -- huge thank you to Rachel Maddow for that!) have changed how the reporting data is interpreted in order to announce that the death count is dropping. Sunday it was 126, Monday it was 86. It's not a miracle, it's a manipulation, the dead are still dead . . .


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FreeState

(10,570 posts)
10. 50% false positives
Wed May 27, 2020, 05:02 PM
May 2020

According to the local news last night.

Edit (link):

https://www.mercurynews.com/2020/05/26/cdc-coronavirus-antibody-tests-could-be-wrong-50-of-the-time/


Antibody tests used to determine if people have been infected in the past with Covid-19 might be wrong up to half the time, the US Centers for Disease Control and Prevention said in new guidance posted on its website.

Antibody tests, often called serologic tests, look for evidence of an immune response to infection. “Antibodies in some persons can be detected within the first week of illness onset,” the CDC says.


Alex4Martinez

(2,193 posts)
2. Wow! May your antibodies serve you well.
Wed May 27, 2020, 04:45 PM
May 2020

I know, test reliability and all. If the tests are valid then it's great news.

I was tested but not for antibodies. Basically, all I know is that I didn't have an active infection on the date and time that took the test. The next day, who knows?
One month earlier, who knows?

Take care!

herding cats

(19,559 posts)
3. Don't let your guard down yet
Wed May 27, 2020, 04:49 PM
May 2020

The antibody test are at least 50% inaccurate.

https://www.forbes.com/sites/tommybeer/2020/05/26/cdc-says-possibly-less-than-half-of-positive-antibody-tests-are-correct/#c93cc432391b

CDC Says Possibly 'Less Than Half' Of Positive Antibody Tests Are Correct

TOPLINE In updated guidance posted on its website over the weekend, the U.S. Centers for Disease Control and Prevention acknowledged an inability to accurately determine if individuals had been infected with Covid-19 via antibody tests; if the test is used in a population where prevalence is low, it's possible that "less than half of those testing positive will truly have antibodies.

<>

However, the CDC has acknowledged that antibody testing can frequently be inaccurate, especially in populations where there is a low prevalence of the coronavirus. In fact, under certain scenarios, “less than half of those testing positive will truly have antibodies,” the agency says.

This is particularly dangerous because it could lead to individuals believing they have been infected with the coronavirus, and acting as if they have immunity, when that is not the case.
As a result, the CDC advises that antibody test results should not be used to make decisions related to schools, dormitories, or correctional facilities, and that testing shouldn't be used to determine immune status in individuals.

lagomorph777

(30,613 posts)
8. I am always skeptical of antibody tests; they have always been a bit sketchy.
Wed May 27, 2020, 04:58 PM
May 2020

But sadly, when the CDC announced this, my gut reaction was "Trump's CDC?" So really, we have no idea whether this statement is even true.

Rstrstx

(1,399 posts)
13. Apparently some antibody tests are a lot more accurate than others
Wed May 27, 2020, 05:12 PM
May 2020

There's one they're using in Germany that has a high accuracy rate in both specificity and sensitivity. It may depend on which lab you used. Quest for instance states that if someone has had the common cold recently it could show up as Covid in their antibody test.

I wouldn't be at all surprised if the OP is one of the asymptomatic types, it seems there are more of them than we thought. Now I WOULD be surprised if they caught it last fall, especially if it was before December.

madamesilverspurs

(15,800 posts)
9. Crazy, ain't it?!
Wed May 27, 2020, 05:02 PM
May 2020

And this came up in the lengthy discussion with the respiratory therapist at the rehab gym. We're watching developments.

Thanks to my history, I have a GP, two pulmonologists, a cardiologist, and several respiratory therapists watching me like a flock of hawks. Damned good thing, methinks.



lagomorph777

(30,613 posts)
6. Very interesting.
Wed May 27, 2020, 04:57 PM
May 2020

You are correct to not change much of your behavior though, given the dubious state of antibody testing at this point.

It will be very interesting as time goes by, to see how many people may have had it and never knew it.

phylny

(8,378 posts)
7. Good news!
Wed May 27, 2020, 04:57 PM
May 2020

I got tested yesterday, negative, but would love an antibody test. I'm going to be tested again on Friday for pre-op and ask if I can have an antibody test.

Stay safe and well!

madamesilverspurs

(15,800 posts)
12. Not really assuming anything.
Wed May 27, 2020, 05:12 PM
May 2020

But I am erring on the side of caution, notifying anyone who might have been within breathing distance at any time in the recent past.


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Ilsa

(61,692 posts)
14. Just keep an eye out for influenza A.
Wed May 27, 2020, 05:24 PM
May 2020

It's still out in the community (I'm in SE US), and some people do really poorly whether it is H1N1 or H3N2. If you had the quadrivalent vaccine this last fall, it should protect you or make the illness milder.

I'm glad your test went well!

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