U5K-81428-89161 · OpenVSafe

Timeline

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

2021-04-08
Dose 1 — Pfizer-BioNTech
2021-04-09
Registered in v-safe
2021-04-09
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-04-09
Report sent to call center — days 1–6 daily, dose 1
Be unable to do your normal daily activities

no matching call case
2021-04-10
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Fatigue or tiredness

Adult check-in
2021-04-11
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Fatigue or tiredness

Adult check-in
2021-04-12
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-04-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-04-14
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-04-15
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-29
Dose 2 — Pfizer-BioNTech
2021-04-29
Health check-in — day 0, dose 2
Feeling: Good · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-04-30
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain · Chills, Headache, Muscle or body aches, Fatigue or tiredness, Diarrhea, Abdominal pain · Be unable to do your normal daily activities

Adult check-in
2021-05-01
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · Fatigue or tiredness, Nausea, Vomiting

Adult check-in
2021-05-02
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · Fatigue or tiredness, Nausea, Vomiting

Adult check-in
2021-05-03
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · Fatigue or tiredness, Nausea

Adult check-in
2021-05-05
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Fatigue or tiredness, Nausea

Adult check-in
2021-05-06
Health check-in — day 7, dose 2
Feeling: Fair · Headache, Fatigue or tiredness, Nausea, Vomiting

Adult check-in
2021-05-15
Survey response — day 14, dose 2
MedDRA: Back pain, Flank pain, Headache — Feeling: Fair

Free text: Headaches on n off. Pain in my right side- front lower right and right lower back. Maybe kidney pain?

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-20
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-28
Survey response — day 28, dose 2
MedDRA: Anaemia — Feeling: Good

Free text: Anemia

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-31
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-28
Survey response — 6 months, dose 2
MedDRA: Headache, Vertigo — Feeling: Fair · Be unable to do your normal daily activities

Free text: Vertigo and headaches

MedDRA releases: 2024-11 · check-in free text available

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-08	Pfizer-BioNTech
2	2021-04-29	Pfizer-BioNTech

Call center

1 check-in flagged for a call with no call center case on record

See the call center timeline

Free text

Release 8 — day 14, dose 2

2021-05-15

Symptoms: Headaches on n off. Pain in my right side- front lower right and right lower back. Maybe kidney pain?

Release 8 — day 28, dose 2

2021-05-28

Symptoms: Anemia

Release 10 — 6 months, dose 2

2021-10-28

Symptoms: Vertigo and headaches

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	Anaemia	✓	✓	✓
SD	Back pain	✓	✓	✓
SD	Flank pain	✓	✓	✓
SD	Headache	✓	✓	✓
SD	Vertigo	·	·	✓

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