YQQ-19871-03619 · OpenVSafe

Timeline

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

2021-03-13
Registered in v-safe
2021-03-13
Dose 1 — Pfizer-BioNTech
2021-03-13
Health check-in — day 0, dose 1
Feeling: Good · Headache

Adult check-in
2021-03-14
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain, Swelling · Fever · None

Adult check-in
2021-03-16
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-17
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-03-19
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-20
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-03-27
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-04-03
Dose 2 — Pfizer-BioNTech
2021-04-03
Health check-in — day 0, dose 2
Feeling: Good · Site: Pain · Muscle or body aches

Adult check-in
2021-04-05
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain, Swelling · Fever · Headache, Fatigue or tiredness, Nausea · Be unable to work

Adult check-in
2021-04-08
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain, Itching · Headache

Adult check-in
2021-04-09
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Swelling · Headache

Adult check-in
2021-04-10
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-04-19
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-24
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-04
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-07-03
Survey response — 3 months, dose 2
MedDRA: Dysmenorrhoea, Heavy menstrual bleeding, Menstruation irregular — Feeling: Good · Be unable to do your normal daily activities

Free text: I have been having heavier and more painful menstrual periods since vaccination. They are also more irregular than before.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-10-03
Survey response — 6 months, dose 2
MedDRA: Migraine — Feeling: Fair · Be unable to work or attend school, Be unable to do your normal daily activities

Free text: Migraine

MedDRA releases: 2024-11 · check-in free text available
2021-12-20
Dose 3 — Pfizer-BioNTech
2022-04-03
Health check-in — 12 months, dose 2
Feeling: Good

Adult check-in
2022-06-22
Health check-in — 6 months, dose 3
Feeling: Good

Adult check-in
2022-12-17
Dose 4 — Pfizer-BioNTech
Co-administered: Flu
2022-12-19
Health check-in — days 1–6 daily, dose 4
Feeling: Poor · Site: Pain · Fever · Headache, Muscle or body aches, Fatigue or tiredness, Diarrhea · Be unable to do your normal daily activities

Adult check-in
2023-01-07
Health check-in — day 21, dose 4
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-13	Pfizer-BioNTech
2	2021-04-03	Pfizer-BioNTech
3	2021-12-20	Pfizer-BioNTech	No
4	2022-12-17	Pfizer-BioNTech	Flu

Free text

Release 9 — 3 months, dose 2

2021-07-03

Symptoms: I have been having heavier and more painful menstrual periods since vaccination. They are also more irregular than before.

Release 9 — 6 months, dose 2

2021-10-03

Symptoms: Migraine

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	Dysmenorrhoea	✓	✓	✓
SD	Heavy menstrual bleeding	✓	✓	✓
SD	Menstruation irregular	✓	✓	✓
SD	Migraine	·	·	✓

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