3LL-29197-53231 · OpenVSafe

Timeline

Registration Vaccinations Survey responses Call reports Cases without a report Call attempts Call successful Pregnancy survey

2021-01-29
Dose 1 — Pfizer-BioNTech
2021-01-30
Registered in v-safe
2021-01-30
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-01-31
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Redness, Swelling · None

Adult check-in
2021-02-01
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Redness, Swelling, Itching · None

Adult check-in
2021-02-02
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Redness, Swelling · None

Adult check-in
2021-02-03
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Swelling · None

Adult check-in
2021-02-04
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Swelling · None

Adult check-in
2021-02-05
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-02-14
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-02-19
Dose 2 — Pfizer-BioNTech
2021-02-21
Survey response — days 1–6 daily, dose 2
MedDRA: Chills, Eczema, Head discomfort, Headache, Pre-existing disease, Vaccine positive rechallenge — Feeling: Good · Chills, Headache

Free text: The chills started about 10:30 p.m. on Friday February 19th 2021, and lasted a couple of hours. The headache is more like a heaviness or fullness in my head which started around 1 a.m. on Saturday February 20th 2021 and lasted a couple of hours. I have eczema on the back of my hand and my neck and I I am wondering if the injection has exacerbated it. The eczema was already there and those places but feel that it worsened after the first and second injection.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-02-22
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-02-23
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-02-24
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-02-26
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-03-05
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-03-12
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-03-19
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-03-26
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-04-02
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-05-21
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-29	Pfizer-BioNTech
2	2021-02-19	Pfizer-BioNTech

Free text

Release 4 — days 1–6 daily, dose 2

2021-02-21

Systemic reaction (other): The chills started about 10:30 p.m. on Friday February 19th 2021, and lasted a couple of hours. The headache is more like a heaviness or fullness in my head which started around 1 a.m. on Saturday February 20th 2021 and lasted a couple of hours. I have eczema on the back of my hand and my neck and I I am wondering if the injection has exacerbated it. The eczema was already there and those places but feel that it worsened after the first and second injection.

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	Chills	✓	✓	✓
SRO	Eczema	✓	✓	✓
SRO	Head discomfort	✓	✓	✓
SRO	Headache	✓	✓	✓
SRO	Pre-existing disease	✓	✓	✓
SRO	Vaccine positive rechallenge	✓	✓	✓

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