4K8-45721-89153 · OpenVSafe

Timeline

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

2021-02-15
Dose 1 — Pfizer-BioNTech
2021-03-19
Dose 2 — Pfizer-BioNTech
2021-12-04
Dose 3 — Pfizer-BioNTech
2022-10-14
Dose 4 — Pfizer-BioNTech
2022-10-16
Registered in v-safe
2022-10-17
Survey response — days 1–6 daily, dose 4
MedDRA: Emergency care, Tremor — Feeling: Good

Free text: Severe tremors in thighs, forearms hands 24 hrs. post booster. EMTs checked md out. Normal EKG, normal respiration, everything else normal. No fever. Tremors subsided after about half an hour.

MedDRA releases: 2024-11 · check-in free text available
2022-10-18
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · None

Adult check-in
2022-10-19
Survey response — days 1–6 daily, dose 4
MedDRA: Emergency care, Tremor — Feeling: Fair · Fatigue or tiredness · Get care from a doctor or other healthcare professional

Free text: Systemic reaction (other): Uncontrollable shaking for 1/2 hour thd day after the booster. Had to call paramedics. Is this normal? · Healthcare visit (other): Paramedics

MedDRA releases: 2024-11 · check-in free text available
2022-10-19
Report sent to call center — days 1–6 daily, dose 4
Get care from a doctor or other healthcare professional

1 call case(s)
2022-10-20
Survey response — days 1–6 daily, dose 4
MedDRA: Adverse reaction, Emergency care — Feeling: Fair · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness, Nausea, Vomiting, Diarrhea, Abdominal pain, Rash, not including the immediate area around the injection site · Get care from a doctor or other healthcare professional

Free text: Systemic reaction (other): I have checked all because no one has followed up previous description of inlisted symptoms for which Paramedics were called. Do you actually care about these responses? · Healthcare visit (other): Paramedics were called

MedDRA releases: 2024-11 · check-in free text available
2022-10-20
Report sent to call center — days 1–6 daily, dose 4
Get care from a doctor or other healthcare professional

1 call case(s)
2022-10-20
Call 1 — Could Not Reach Participant
2022-10-21
Call 2 — Left Voicemail
2022-10-21
Call 1 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-02-15	Pfizer-BioNTech	No
2	2021-03-19	Pfizer-BioNTech	No
3	2021-12-04	Pfizer-BioNTech	No
4	2022-10-14	Pfizer-BioNTech	No

Call center

2 call center cases

2 unsuccessful

See the call center timeline

Free text

Release 12 — days 1–6 daily, dose 4

2022-10-17

Systemic reaction (other): Severe tremors in thighs, forearms hands 24 hrs. post booster. EMTs checked md out. Normal EKG, normal respiration, everything else normal. No fever. Tremors subsided after about half an hour.

2022-10-19

Systemic reaction (other): Uncontrollable shaking for 1/2 hour thd day after the booster. Had to call paramedics. Is this normal?

Healthcare visit (other): Paramedics

2022-10-20

Systemic reaction (other): I have checked all because no one has followed up previous description of inlisted symptoms for which Paramedics were called. Do you actually care about these responses?

Healthcare visit (other): Paramedics were called

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
HCVO	Emergency care	·	·	✓
SRO	Adverse reaction	·	·	✓
SRO	Emergency care	·	·	✓
SRO	Tremor	·	·	✓

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