MSB-18330-43599

4 vaccinations 8 coded responses 27 check-ins 7 free-text entries 1 call case

Sex: Female
Age at first dose: 31-35
ZIP prefix: 112 / NY
Registered: 2021-01-25

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

Timeline

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

2021-01-22
Dose 1 — Pfizer-BioNTech
2021-01-25
Registered in v-safe
2021-01-25
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain, Redness, Swelling · Headache, Muscle or body aches, Fatigue or tiredness, Nausea, Diarrhea

Adult check-in
2021-01-26
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Headache

Adult check-in
2021-01-27
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-01-28
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-01-29
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-02-05
Survey response — day 14, dose 1
MedDRA: Headache — Feeling: Fair · Be unable to work, Be unable to do your normal daily activities

Free text: Headache

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-02-12
Dose 2 — Pfizer-BioNTech
2021-02-19
Health check-in — day 7, dose 2
Feeling: Good · Site: Pain, Redness, Swelling, Itching · None

Adult check-in
2021-02-26
Health check-in — day 14, dose 2
Feeling: Fair

Adult check-in
2021-03-05
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-03-12
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-03-19
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-03-26
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-05-14
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-08-13
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2021-11-08
Dose 3 — Pfizer-BioNTech
2022-02-12
Survey response — 12 months, dose 2
MedDRA: SARS-CoV-2 test positive — Feeling: Fair · Be unable to do your normal daily activities

Free text: I tested positive for COVID-19 on December 31, 2021

MedDRA releases: 2024-11 · check-in free text available
2022-05-09
Survey response — 6 months, dose 3
MedDRA: COVID-19 — Feeling: Fair · Be unable to work or attend school, Be unable to do your normal daily activities

Free text: Caught COVID-19 December 27, 2021

MedDRA releases: 2024-11 · check-in free text available
2022-09-28
Dose 4 — Pfizer-BioNTech
2022-10-02
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2022-10-03
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Joint pains, Muscle or body aches, Fatigue or tiredness, Nausea

Adult check-in
2022-10-04
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2022-10-05
Health check-in — day 7, dose 4
Feeling: Fair · Headache, Joint pains, Muscle or body aches

Adult check-in
2022-10-12
Health check-in — day 14, dose 4
Feeling: Fair

Adult check-in
2022-10-19
Health check-in — day 21, dose 4
Feeling: Good

Adult check-in
2022-10-26
Survey response — day 28, dose 4
MedDRA: Abdominal discomfort — Feeling: Fair · Be unable to do your normal daily activities

Free text: Gastrointestinal distress

MedDRA releases: 2024-11 · check-in free text available
2022-11-02
Survey response — day 35, dose 4
MedDRA: Pregnancy — Feeling: Poor · Be unable to do your normal daily activities

Free text: Pregnancy symptoms such as cramps, headache, dizziness

MedDRA releases: 2024-11 · check-in free text available
2022-11-09
Survey response — day 42, dose 4
MedDRA: Pre-existing disease — Feeling: Good · Be unable to do your normal daily activities

Free text: Clinical condition that makes pregnancy difficult

MedDRA releases: 2024-11 · check-in free text available
2022-12-28
Survey response — 3 months, dose 4
MedDRA: Pregnancy — Feeling: Good · Be unable to do your normal daily activities

Free text: Discomfort between second and third trimesters of pregnancy

MedDRA releases: 2024-11 · check-in free text available
2023-03-29
Survey response — 6 months, dose 4
MedDRA: Delivery — Feeling: Good · Be unable to work or attend school, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Hospitalization

MedDRA releases: 2024-11
2023-03-29
Report sent to call center — 6 months, dose 4
Be unable to work or attend school · Be unable to do your normal daily activities · Get care from a doctor or other healthcare pr

Hospitalization · 1 call case(s)
2023-03-30
Call successful
Not applicable – Participant does not believe symptoms are related to vaccine and does not wish to fill

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-22	Pfizer-BioNTech
2	2021-02-12	Pfizer-BioNTech
3	2021-11-08	Pfizer-BioNTech	No
4	2022-09-28	Pfizer-BioNTech	No

Call center

1 call center case

1 successful

See the call center timeline

Free text

Release 3 — day 14, dose 1

2021-02-05

Symptoms: Headache

Release 11 — 12 months, dose 2

2022-02-12

Symptoms: I tested positive for COVID-19 on December 31, 2021

Release 11 — 6 months, dose 3

2022-05-09

Symptoms: Caught COVID-19 December 27, 2021

Release 12 — day 28, dose 4

2022-10-26

Symptoms: Gastrointestinal distress

Release 12 — day 35, dose 4

2022-11-02

Symptoms: Pregnancy symptoms such as cramps, headache, dizziness

Release 12 — day 42, dose 4

2022-11-09

Symptoms: Clinical condition that makes pregnancy difficult

Release 12 — 3 months, dose 4

2022-12-28

Symptoms: Discomfort between second and third trimesters of pregnancy

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	Abdominal discomfort	·	·	✓
SD	COVID-19	·	·	✓
SD	Delivery	·	·	✓
SD	Headache	✓	✓	✓
SD	Pre-existing disease	·	·	✓
SD	Pregnancy	·	·	✓
SD	SARS-CoV-2 test positive	·	·	✓

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