Antibody test on a vaccinated person

1,590 Views | 6 Replies | Last: 3 yr ago by SamjamAg
B-1 83
How long do you want to ignore this user?
AG
I was vaccinated in April and thought I might have had a mild COVID case three weeks ago. Will an antibody test be able to tell the difference?
Being in TexAgs jail changes a man……..no, not really
aggieduke
How long do you want to ignore this user?
AG
Yes
Philippians 4:13
cisgenderedAggie
How long do you want to ignore this user?
Depends on the test, but probably not good enough to know if you had Covid 3 weeks ago.
DannyDuberstein
How long do you want to ignore this user?
AG
Most will. Make sure it includes an N (envelope) test and an S (spike) protein test. The N are only infection antibodies, so if you are positive for those, indicates you actually had covid. S can be generated by infection and/or vaccine
B-1 83
How long do you want to ignore this user?
AG
DannyDuberstein said:

Most will. Make sure it includes an N (envelope) test and an S (spike) protein test. The N are only infection antibodies, so if you are positive for those, indicates you actually had covid. S can be generated by infection and/or vaccine
My test (CVS) only showed IgG and IgM. Their explanation is that IgG shows antibodies not differentiated between infection resulting or vaccination resulting, while IgM is there if there was a COVID infection in the last 14 days.

My results were "high" for IgG, and negative for IgM. I was vaccinated in March, so either that vaccine is still doing all it can, or maybe I had a dose of COVID since and didn't know it.
Being in TexAgs jail changes a man……..no, not really
bigtruckguy3500
How long do you want to ignore this user?
B-1 83 said:

DannyDuberstein said:

Most will. Make sure it includes an N (envelope) test and an S (spike) protein test. The N are only infection antibodies, so if you are positive for those, indicates you actually had covid. S can be generated by infection and/or vaccine
My test (CVS) only showed IgG and IgM. Their explanation is that IgG shows antibodies not differentiated between infection resulting or vaccination resulting, while IgM is there if there was a COVID infection in the last 14 days.

My results were "high" for IgG, and negative for IgM. I was vaccinated in March, so either that vaccine is still doing all it can, or maybe I had a dose of COVID since and didn't know it.
IgM will only show up the first time you're infected with something new. It's made rapidly, but not as efficiently as IgG. Once the body has quality IgG, IgM isn't as good and the body doesn't make it.

That being said, if you get infected with a new enough version of COVID, your body may make IgM if its current IgG doesn't recognize the virus.

So, you could've still gotten infected. But it could also be that you were exposed to COVID, but not actually infected, and were infected with another virus.
SamjamAg
How long do you want to ignore this user?
AG


Bigtruck, can you elaborate on this statement…

So, you could've still gotten infected. But it could also be that you were exposed to COVID, but not actually infected, and were infected with another virus.

What is the difference between being exposed and actual infection with regards to testing?
Refresh
Page 1 of 1
 
×
subscribe Verify your student status
See Subscription Benefits
Trial only available to users who have never subscribed or participated in a previous trial.