WRM-25484-18621 · OpenVSafe

Timeline

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

2021-03-12
Dose 1 — Pfizer-BioNTech
2021-03-13
Registered in v-safe
2021-03-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Headache, Muscle or body aches

Adult check-in
2021-03-15
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Headache, Nausea

Adult check-in
2021-03-18
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-14
Dose 2 — Pfizer-BioNTech
2021-04-15
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness — Feeling: Poor · Site: Pain, Swelling · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Free text: Dizziness

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-28
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-12	Pfizer-BioNTech
2	2021-04-14	Pfizer-BioNTech

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-15

Systemic reaction (other): Dizziness

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	Dizziness	✓	✓	✓

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