VBD-91322-93211 · OpenVSafe

Timeline

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

2021-08-25
Registered in v-safe
2021-08-25
Dose 1 — Moderna
Co-administered: yes
2021-08-26
Survey response — days 1–6 daily, dose 1
MedDRA: Brain fog — Feeling: Fair · Site: Pain · Fatigue or tiredness, Nausea

Free text: Foggy head

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-08-27
Survey response — days 1–6 daily, dose 1
MedDRA: Brain fog — Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness, Nausea

Free text: Foggy head

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-08-28
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-08-29
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-08-30
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-08-31
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-09-01
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-09-10
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-08-25	Moderna	Yes

Free text

Release 9 — days 1–6 daily, dose 1

2021-08-26

Systemic reaction (other): Foggy head

2021-08-27

Systemic reaction (other): Foggy head

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	Brain fog	✓	·	✓

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