YEF-30461-92567

4 vaccinations 6 coded responses 34 check-ins 6 free-text entries 0 call cases

Sex: Female
Age at first dose: 46-50
ZIP prefix: 138 / NY
Registered: 2021-04-21

Relationship: Self
Race: White
Ethnicity: Not Hispanic or Latino

Timeline Vaccinations Free text MedDRA terms

Timeline

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

2021-04-18
Dose 1 — Pfizer-BioNTech
2021-04-21
Registered in v-safe
2021-04-21
Health check-in — days 1–6 daily, dose 1
Feeling: Poor · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness, Abdominal pain · Be unable to do your normal daily activities

Adult check-in
2021-04-22
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Abdominal pain

Adult check-in
2021-04-24
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-25
Survey response — day 7, dose 1
MedDRA: Headache, Vomiting — Feeling: Poor · Headache, Nausea, Vomiting · Be unable to do your normal daily activities

Free text: Not sure if related to vaccine. Headache extreme & caused vomiting.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-02
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-05-09
Dose 2 — Pfizer-BioNTech
2021-05-09
Health check-in — day 0, dose 2
Feeling: Good · Site: Pain · Headache, Fatigue or tiredness

Adult check-in
2021-05-10
Survey response — days 1–6 daily, dose 2
MedDRA: Lymphadenopathy — Feeling: Poor · Site: Pain · Fever · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Free text: Swollen lymph nodes under jaw on injection side of body

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-11
Survey response — days 1–6 daily, dose 2
MedDRA: Lymphadenopathy — Feeling: Good · Site: Pain

Free text: Still a swollen lymph node on that side but thats it

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-12
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · None

Adult check-in
2021-05-13
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain, Redness, Swelling · Headache

Adult check-in
2021-05-14
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Headache

Adult check-in
2021-05-15
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-05-16
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-05-23
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-30
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-06-06
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-06-13
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-06-20
Survey response — day 42, dose 2
MedDRA: Headache — Feeling: Good

Free text: Im having a marked increase in headaches since vaccination but we also recently moved to the region so unsure whether theyre weather/air-pressure related or if vaccine related. Answering the other questions excluding increase in headaches

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-08-08
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-11-07
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2021-12-21
Dose 3 — Pfizer-BioNTech
2022-06-21
Health check-in — 6 months, dose 3
Feeling: Good

Adult check-in
2022-08-24
Dose 4 — Pfizer-BioNTech
2022-08-25
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain, Swelling · Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2022-08-26
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-08-27
Health check-in — days 1–6 daily, dose 4
Feeling: Good · Headache, Fatigue or tiredness

Adult check-in
2022-08-28
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-08-30
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-08-31
Health check-in — day 7, dose 4
Feeling: Good · None

Adult check-in
2022-09-07
Survey response — day 14, dose 4
MedDRA: Menstruation irregular, Reaction to previous exposure to any vaccine — Feeling: Good

Free text: Missed period, not sure if related. Happened last year after my first or 2nd dose as well

MedDRA releases: 2024-11 · check-in free text available
2022-09-16
Health check-in — day 21, dose 4
Feeling: Good

Adult check-in
2022-09-21
Health check-in — day 28, dose 4
Feeling: Good

Adult check-in
2022-09-28
Health check-in — day 35, dose 4
Feeling: Good

Adult check-in
2022-10-05
Survey response — day 42, dose 4
MedDRA: Menstruation irregular, Oligomenorrhoea — Feeling: Good

Free text: Menstrual cycle skipped a month after my booster, then lasted 8 days instead or 4 or 5 when it did come.

MedDRA releases: 2024-11 · check-in free text available
2022-11-23
Health check-in — 3 months, dose 4
Feeling: Good

Adult check-in
2023-02-22
Health check-in — 6 months, dose 4
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-18	Pfizer-BioNTech
2	2021-05-09	Pfizer-BioNTech
3	2021-12-21	Pfizer-BioNTech	No
4	2022-08-24	Pfizer-BioNTech	No

Free text

Release 7 — day 7, dose 1

2021-04-25

Systemic reaction (other): Not sure if related to vaccine. Headache extreme & caused vomiting.

Release 8 — days 1–6 daily, dose 2

2021-05-10

Systemic reaction (other): Swollen lymph nodes under jaw on injection side of body

2021-05-11

Systemic reaction (other): Still a swollen lymph node on that side but thats it

Release 9 — day 42, dose 2

2021-06-20

Symptoms: Im having a marked increase in headaches since vaccination but we also recently moved to the region so unsure whether theyre weather/air-pressure related or if vaccine related. Answering the other questions excluding increase in headaches

Release 12 — day 14, dose 4

2022-09-07

Symptoms: Missed period, not sure if related. Happened last year after my first or 2nd dose as well

Release 12 — day 42, dose 4

2022-10-05

Symptoms: Menstrual cycle skipped a month after my booster, then lasted 8 days instead or 4 or 5 when it did come.

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	Headache	✓	✓	✓
SD	Menstruation irregular	·	·	✓
SD	Oligomenorrhoea	·	·	✓
SD	Reaction to previous exposure to any vaccine	·	·	✓
SRO	Headache	✓	✓	✓
SRO	Lymphadenopathy	✓	✓	✓
SRO	Vomiting	✓	✓	✓

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