R4B-20918-58007 · OpenVSafe

Timeline

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

2021-02-23
Registered in v-safe
2021-02-23
Dose 1 — Pfizer-BioNTech
2021-02-23
Survey response — day 0, dose 1
MedDRA: Hypoaesthesia — Feeling: Good · Site: Pain

Free text: Arm felt a little numb initially.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-02-24
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-02-25
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-02-26
Survey response — days 1–6 daily, dose 1
MedDRA: Dehydration — Feeling: Fair · Headache

Free text: Might just need to hydrate

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-03
Health check-in — day 7, dose 1
Feeling: Fair · Headache, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-03-09
Survey response — day 14, dose 1
MedDRA: Headache — Feeling: Fair · Be unable to do your normal daily activities

Free text: Headaches

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-16
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-03-19
Dose 2 — Pfizer-BioNTech
2021-03-20
Survey response — days 1–6 daily, dose 2
MedDRA: Feeling hot — Feeling: Poor · Site: Pain · Joint pains, Muscle or body aches, Fatigue or tiredness

Free text: Hot

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-22
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-03-23
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-03-26
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-04-05
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-09
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-04-18
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-04-28
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-04-30
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-06-20
Survey response — 3 months, dose 2
MedDRA: Pregnancy — Feeling: Good

Free text: Non viable pregnancy

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-09-17
Survey response — 6 months, dose 2
MedDRA: Concussion — Feeling: Good · Be unable to do your normal daily activities

Free text: Minor concussion

MedDRA releases: 2024-11 · check-in free text available
2021-10-09
Dose 3 — Pfizer-BioNTech

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-02-23	Pfizer-BioNTech
2	2021-03-19	Pfizer-BioNTech
3	2021-10-09	Pfizer-BioNTech	No

Free text

Release 4 — day 0, dose 1

2021-02-23

Systemic reaction (other): Arm felt a little numb initially.

Release 4 — days 1–6 daily, dose 1

2021-02-26

Systemic reaction (other): Might just need to hydrate

Release 5 — day 14, dose 1

2021-03-09

Symptoms: Headaches

Release 6 — days 1–6 daily, dose 2

2021-03-20

Systemic reaction (other): Hot

Release 9 — 3 months, dose 2

2021-06-20

Symptoms: Non viable pregnancy

Release 9 — 6 months, dose 2

2021-09-17

Symptoms: Minor concussion

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	Concussion	·	·	✓
SD	Headache	✓	✓	✓
SD	Pregnancy	✓	✓	✓
SRO	Dehydration	✓	✓	✓
SRO	Feeling hot	✓	✓	✓
SRO	Hypoaesthesia	✓	✓	✓

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