R2Z-41093-05817 · OpenVSafe

Timeline

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

2021-05-25
Dose 1 — Pfizer-BioNTech
2021-06-15
Registered in v-safe
2021-06-15
Dose 2 — Pfizer-BioNTech
2021-06-15
Survey response — day 0, dose 2
MedDRA: Back pain, Immediate post-injection reaction, Paraesthesia — Feeling: Fair · Site: Pain, Itching · Headache, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to work or attend school

Free text: Severe lower back pain, tingling sensation down my spine minutes after the 2nd dose.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-06-16
Survey response — days 1–6 daily, dose 2
MedDRA: Back pain — Feeling: Fair · Site: Pain, Swelling · Headache, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to work or attend school

Free text: Severe lower back pain

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-05-25	Pfizer-BioNTech
2	2021-06-15	Pfizer-BioNTech

Free text

Release 9 — day 0, dose 2

2021-06-15

Systemic reaction (other): Severe lower back pain, tingling sensation down my spine minutes after the 2nd dose.

Release 9 — days 1–6 daily, dose 2

2021-06-16

Systemic reaction (other): Severe 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
SRO	Back pain	✓	✓	✓
SRO	Immediate post-injection reaction	✓	✓	✓
SRO	Paraesthesia	✓	✓	✓

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