3VW-76223-17486 · OpenVSafe

Timeline

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

2021-01-17
Registered in v-safe
2021-01-17
Dose 1 — Pfizer-BioNTech
2021-01-17
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-01-18
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Nausea

Adult check-in
2021-01-21
Survey response — days 1–6 daily, dose 1
MedDRA: Muscle spasms — Feeling: Fair · Muscle or body aches · Be unable to do your normal daily activities

Free text: Back spasm

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-21
Report sent to call center — days 1–6 daily, dose 1
Be unable to do your normal daily activities

1 call case(s)
2021-01-24
Survey response — day 7, dose 1
MedDRA: Back pain — Feeling: Fair · Muscle or body aches · Be unable to do your normal daily activities

Free text: Back pain

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-24
Report sent to call center — day 7, dose 1
Be unable to do your normal daily activities

1 call case(s)
2021-01-31
Survey response — day 14, dose 1
MedDRA: Back pain — Feeling: Fair · Be unable to work, Be unable to do your normal daily activities

Free text: Extreme lower back pain

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-31
Report sent to call center — day 14, dose 1
Be unable to work · Be unable to do your normal daily activities

1 call case(s)

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-17	Pfizer-BioNTech

Call center

Reported	Outcome	VAERS-related outcome
2021-01-21	priority 2/3
2021-01-24	priority 2/3
2021-01-31	priority 2/3

Free text

Release 2 — days 1–6 daily, dose 1

2021-01-21

Systemic reaction (other): Back spasm

Release 2 — day 7, dose 1

2021-01-24

Systemic reaction (other): Back pain

Release 3 — day 14, dose 1

2021-01-31

Symptoms: Extreme lower back pain

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	Back pain	✓	✓	✓
SRO	Back pain	✓	✓	✓
SRO	Muscle spasms	✓	✓	✓

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