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Negative for antibodies
Old 07-28-2020, 06:19 AM
  #1

I recently donated blood and got a covid antibody test as part of the process. It’s negative. I’m really surprised. While I never had symptoms a good teacher friend tested positive along with many parents at my school. So I know I’ve had a lot of exposure. Plus my DH is in law enforcement and he’s been working throughout. I’m strangely disappointed.



Last edited by Readingal; 07-28-2020 at 07:07 AM..
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Old 07-28-2020, 06:28 AM
  #2

Well, think of it this way. There is really no research that proves that you are immune to the virus once you have had it anyway.
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There isn't a lot of research
Old 07-28-2020, 07:27 AM
  #3

into how many people develop antibodies after COVID or even how long the antibodies last.

So, the idea of herd immunity, as in letting a lot of people get the disease, is still iffy.


Good news, you are not COVID 19 positive.
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Old 07-28-2020, 08:25 AM
  #4

How could you be exposed AND test negative?

1) Faulty test. Tests tend to return a small number of false negatives. The science is not foolproof - actually this is true of many medical tests. Most are accurate, but not all. And, there's always the tiny chance that there's a lab error (mixup, etc) that gave you someone else's results, recorded your result incorrectly, etc.

2) You WERE exposed but your wonderful innate immune system defeated the virus before your adaptive immune system developed COVID-19-specific antibodies. Our innate immune system is the one that are the general fighters that are called into action when antigens (viruses, bacteria, etc) invade.

I understand the disappointment...
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Old 07-28-2020, 10:51 AM
  #5

You might have been exposed, developed antibodies, but because it was months ago, the antibodies have now gone away. Apparently, they go away (unlike the mumps or measles that give you a lifetime immunity).


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Old 07-28-2020, 01:39 PM
  #6

My friend who tested positive has been a part of a research study. She had covid in February and continues to test positive for antibodies. My husband donated blood a couple days after I did. Iím really curious about his antibody results. We will know soon.
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Giving blood
Old 07-28-2020, 04:36 PM
  #7

I have an appointment to donate tomorrow. I donít think Ive been Exposed but it would be interesting to find out.
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