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Lateral flow test ??

11 replies

studentvera · 03/11/2021 06:26

Hi if you have covid how many days does the lateral flow test show positive normally?
Thank you

OP posts:
holidaynearlyover · 03/11/2021 06:30

I thought they could be positive for ages? Isn't that why you don't use them for 90 days after having covid?

skyblueone · 03/11/2021 06:34

For me it was 3 days, dd 2 days and dh 4 days.

studentvera · 03/11/2021 06:34

Oh really okay thank you

OP posts:
studentvera · 03/11/2021 06:34

Thank you sky blue one

OP posts:
hellcatspangle · 03/11/2021 06:48

@holidaynearlyover

I thought they could be positive for ages? Isn't that why you don't use them for 90 days after having covid?
That's the pcr. All the people I know who've had covid have tested negative on LF by the end of their isolation.
dementedpixie · 03/11/2021 06:58

You are still exempt from regular LFT testing for 90 days after a positive PCR as you can still test positive on them after you are no longer contagious

DavidDevantsSpiritWife · 03/11/2021 08:19

That's the pcr. All the people I know who've had covid have tested negative on LF by the end of their isolation

DH and I had covid at the beginning of September. About ten days ago he did an LFT 'out of curiosity' even though he knew not to test within 90 days. It showed a faint positive - seven weeks or so after isolation ended. I then did one, but it was negative.

You can show positive on PCR and LFT for 90 days afterwards.

Theforest · 03/11/2021 08:24

My DS went back to school today after Covid and isolating.

Does he have to resume twice weekly lateral flows? Track and trace only mentioned PCRs to me.

beenrumbled · 03/11/2021 08:31

No need to test (either PCR or LFT) for 90 days after a positive PCR. Just been through this with DS2; he is still not testing for school as was positive in September.

holidaynearlyover · 03/11/2021 14:24

@hellcatspangle the only reason I think that is that children and staff in school were told not to do weekly lateral flow tests after having covid for 90 days as they could show false positives 🤷🏼‍♀️

PokemonGoGoGo · 03/11/2021 14:45

I first tested positive a week ago on LFT and PCR and my LFT is still positive today (although slightly fainter than it has been)

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