9LA-12187-59882 · OpenVSafe

Timeline

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

2021-04-09
Dose 1 — Pfizer-BioNTech
2021-05-01
Dose 2 — Pfizer-BioNTech
2021-05-03
Registered in v-safe
2021-05-03
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-05-07
Survey response — days 1–6 daily, dose 2
MedDRA: Atrial fibrillation, Seizure — Feeling: Fair · Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Had an episode of afib

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-07
Report sent to call center — days 1–6 daily, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-05-28
Call 1 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-09	Pfizer-BioNTech
2	2021-05-01	Pfizer-BioNTech

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 8 — days 1–6 daily, dose 2

2021-05-07

Systemic reaction (other): Had an episode of afib

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	Atrial fibrillation	✓	·	✓
SRO	Seizure	○	✓	○

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