ZG3-16974-67831 · OpenVSafe

Timeline

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

2021-04-07
Registered in v-safe
2021-04-07
Dose 1 — Pfizer-BioNTech
2021-04-07
Survey response — day 0, dose 1
MedDRA: Immediate post-injection reaction, Paraesthesia — Feeling: Good · Site: Pain

Free text: Arm felt mildly tingly after shot for a little while

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-08
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-04-09
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-10
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-16
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-23
Health check-in — day 14, dose 1
Feeling: Fair

Adult check-in
2021-04-28
Survey response — day 21, dose 1
MedDRA: Heavy menstrual bleeding — Feeling: Fair

Free text: I experienced a longer than normal period that started a week after my first dose. It seems very likely to be correlated to the vaccine based on timing and my usually infrequent periods due to birth control.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-30
Dose 2 — Pfizer-BioNTech
2021-05-07
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-05-16
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-21
Survey response — day 21, dose 2
MedDRA: Intermenstrual bleeding, Menstrual disorder — Feeling: Fair

Free text: I have had additional menstrual symptoms that seem to be triggered by the vaccine. Early periods and spotting are unusual for me, but my period showed up early after each dose of the vaccine and had spotting on weeks between.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-28
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-06-04
Health check-in — day 35, dose 2
Feeling: Fair

Adult check-in
2021-10-29
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2022-01-08
Dose 3 — Pfizer-BioNTech
2022-05-01
Health check-in — 12 months, dose 2
Feeling: Good

Adult check-in
2022-07-09
Health check-in — 6 months, dose 3
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-07	Pfizer-BioNTech
2	2021-04-30	Pfizer-BioNTech
3	2022-01-08	Pfizer-BioNTech	No

Free text

Release 7 — day 0, dose 1

2021-04-07

Systemic reaction (other): Arm felt mildly tingly after shot for a little while

Release 8 — day 21, dose 1

2021-04-28

Symptoms: I experienced a longer than normal period that started a week after my first dose. It seems very likely to be correlated to the vaccine based on timing and my usually infrequent periods due to birth control.

Release 8 — day 21, dose 2

2021-05-21

Symptoms: I have had additional menstrual symptoms that seem to be triggered by the vaccine. Early periods and spotting are unusual for me, but my period showed up early after each dose of the vaccine and had spotting on weeks between.

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	Heavy menstrual bleeding	✓	✓	✓
SD	Intermenstrual bleeding	✓	✓	✓
SD	Menstrual disorder	✓	✓	✓
SRO	Immediate post-injection reaction	✓	✓	✓
SRO	Paraesthesia	✓	✓	✓

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