N7Q-44898-87365 · OpenVSafe

Timeline

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

2021-03-18
Dose 1 — Pfizer-BioNTech
2021-03-20
Registered in v-safe
2021-03-20
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-03-21
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-08
Dose 2 — Pfizer-BioNTech
2021-04-10
Survey response — days 1–6 daily, dose 2
MedDRA: Migraine — Feeling: Fair · Site: Pain · Headache · Be unable to do your normal daily activities

Free text: Migraine, onset about 12 hours after vaccination

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-11
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Headache

Adult check-in
2021-04-12
Survey response — days 1–6 daily, dose 2
MedDRA: Migraine — Feeling: Fair · Headache

Free text: Migraine (relieved with current prescription medication)

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-17
Health check-in — day 7, dose 2
Feeling: Good · Headache

Adult check-in
2021-04-24
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2022-04-08
Survey response — 12 months, dose 2
MedDRA: Anxiety, Paraesthesia, Tinnitus — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit, Emergency room or emergency department visit

Free text: Worsening anxiety, intermittent pins and needles sensation, tinnitus

MedDRA releases: 2024-11 · check-in free text available
2022-04-08
Report sent to call center — 12 months, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

Outpatient clinic or urgent care clinic visit · Emergency room or emergency department visit · 1 call case(s)
2022-04-14
Call 1 — Could Not Reach Participant
2022-04-19
Call 2 — Could Not Reach Participant

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-18	Pfizer-BioNTech
2	2021-04-08	Pfizer-BioNTech

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-10

Systemic reaction (other): Migraine, onset about 12 hours after vaccination

2021-04-12

Systemic reaction (other): Migraine (relieved with current prescription medication)

Release 11 — 12 months, dose 2

2022-04-08

Symptoms: Worsening anxiety, intermittent pins and needles sensation, tinnitus

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
SD	Anxiety	·	·	✓
SD	Paraesthesia	·	·	✓
SD	Tinnitus	·	·	✓
SRO	Migraine	✓	✓	✓

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