5TL-30915-14368 · OpenVSafe

Timeline

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2020-12-21
Registered in v-safe
2020-12-21
Dose 1 — Pfizer-BioNTech
2020-12-21
Health check-in — day 0, dose 1
Feeling: Good · Headache

Adult check-in
2020-12-27
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2020-12-28
Survey response — day 7, dose 1
MedDRA: Condition aggravated, Pre-existing disease — Feeling: Fair

Free text: Hives. I have chronic autoimmune hives for the last 6 years on a daily basis that have been mainly suppressed with medications. I received the vaccine 1 week ago and noticed a increase in hive breakouts starting about 3 days after receiving the 1st dose of vaccine. I would say I have about 20-30% more hives appearing on a daily basis since the vaccine. Normally I my daily medicine routine would suppress 95% of the hives but now they are appearing more and more.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-11
Dose 2 — Pfizer-BioNTech
2021-02-02
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2020-12-21	Pfizer-BioNTech
2	2021-01-11	Pfizer-BioNTech

Free text

Release 1 — day 7, dose 1

2020-12-28

Systemic reaction (other): Hives. I have chronic autoimmune hives for the last 6 years on a daily basis that have been mainly suppressed with medications. I received the vaccine 1 week ago and noticed a increase in hive breakouts starting about 3 days after receiving the 1st dose of vaccine. I would say I have about 20-30% more hives appearing on a daily basis since the vaccine. Normally I my daily medicine routine would suppress 95% of the hives but now they are appearing more and more.

Each entry is dated by the survey it was written in (the CDC re-sent the releases with survey dates in 2025); click a date to see that survey response. The CDC cut some text off at about 250 characters: symptoms in every release, and the other two fields in releases 9-12. Those entries are marked "cut off by CDC".

MedDRA terms by release

Field	Preferred term	2021-09	2023-04	2024-11
SRO	Condition aggravated	✓	✓	✓
SRO	Pre-existing disease	✓	✓	✓
SRO	Urticaria	○	○	○

✓ active code · ○ coded but marked inactive · blank = not in that release