Z3N-31506-01364 · OpenVSafe

Timeline

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

2021-01-09
Dose 1 — Moderna
2021-01-10
Registered in v-safe
2021-01-10
Survey response — days 1–6 daily, dose 1
MedDRA: Feeling abnormal, Immediate post-injection reaction, Palpitations — Feeling: Good · Site: Pain · Fatigue or tiredness

Free text: Racing heartbeat about 2 minutes after injection. Felt off first, then the racing heartbeat.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-17
Survey response — day 7, dose 1
MedDRA: Chills, Feeling abnormal, Feeling cold, Immediate post-injection reaction, Palpitations, Peripheral coldness — Feeling: Good · Site: Pain · Chills

Free text: A few minutes after receiving the vaccine, started feeling off and my heart started racing. This feeling lasted for a while. Waited to leave, about 20 minutes, to make sure I wasnt going to collapse. Next evening, got the chills and was unable to warm up for 2 hours. Feet were ice cold to the touch, even with thick socks and blankets on them, and sitting in front of furnace vent.

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

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-09	Moderna

Free text

Release 1 — days 1–6 daily, dose 1

2021-01-10

Systemic reaction (other): Racing heartbeat about 2 minutes after injection. Felt off first, then the racing heartbeat.

Release 2 — day 7, dose 1

2021-01-17

Systemic reaction (other): A few minutes after receiving the vaccine, started feeling off and my heart started racing. This feeling lasted for a while. Waited to leave, about 20 minutes, to make sure I wasnt going to collapse. Next evening, got the chills and was unable to warm up for 2 hours. Feet were ice cold to the touch, even with thick socks and blankets on them, and sitting in front of furnace vent.

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	Chills	✓	✓	✓
SRO	Feeling abnormal	✓	✓	✓
SRO	Feeling cold	✓	✓	✓
SRO	Immediate post-injection reaction	✓	✓	✓
SRO	Palpitations	✓	✓	✓
SRO	Peripheral coldness	✓	✓	✓

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