YC8-20306-03932

4 vaccinations 5 coded responses 48 check-ins 5 free-text entries 2 call cases

Sex: Female
Age at first dose: 26-30
ZIP prefix: 397 / MS
Registered: 2021-03-30

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

Registered dependents

7V7-19517-48878 Child or adolescent in my care · Male · 2022-06-26

8WK-15152-67987 Child or adolescent in my care · Male · 2022-10-28

Possible VAERS report

VAERS ID	Confidence	Score	Runner-up	Shared symptoms	Dose	State	VAERS vaccinated / onset / received	Call case
1807802 (opens in a new window)	high	10 / 11	2	2 of 6 VAERS symptoms	same dose (2)	MS matches	2021-04-20 / 2021-04-20 / 2021-10-22 received 183 days after the last call	case 564886

From the VAERS matching of call center cases (loader/vaers_match_*). Only the best match is shown, and only if it scores 8 or more out of 11. The score adds up timing (VAERS received soon after the call center contact), dose and shared symptoms; state only breaks ties. Confidence is high when the score is 8+ and at least 3 points ahead of the runner-up, medium when 5+ and 2 ahead, otherwise low. A match is a likely link, not a confirmed one.

Timeline

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

2021-03-30
Registered in v-safe
2021-03-30
Dose 1 — Pfizer-BioNTech
2021-03-30
Health check-in — day 0, dose 1
Feeling: Good · Site: Pain · Headache, Nausea

Adult check-in
2021-03-31
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Nausea

Adult check-in
2021-04-01
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-02
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-03
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

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

Adult check-in
2021-04-05
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Headache, Nausea

Adult check-in
2021-04-06
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-13
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-04-20
Dose 2 — Pfizer-BioNTech
2021-04-20
Health check-in — day 0, dose 2
Feeling: Fair · Site: Pain · Fatigue or tiredness

Adult check-in
2021-04-21
Survey response — days 1–6 daily, dose 2
MedDRA: Chromaturia — Feeling: Fair · Site: Pain · Chills, Fatigue or tiredness, Nausea, Abdominal pain

Free text: Dark urine

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-22
Survey response — days 1–6 daily, dose 2
MedDRA: Urinary tract infection — Feeling: Good · Site: Pain · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: UTI

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-22
Report sent to call center — days 1–6 daily, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-04-23
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Diarrhea, Abdominal pain

Adult check-in
2021-04-24
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Diarrhea

Adult check-in
2021-04-25
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-26
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Diarrhea

Adult check-in
2021-04-27
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-05-04
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-11
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-18
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-05-25
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-06-01
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-07-20
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-19
Survey response — 6 months, dose 2
MedDRA: Diarrhoea, Gastroenteritis viral, Urinary tract infection — Feeling: Good · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: Stomach bug with diarrhea immediately followed by a UTI

MedDRA releases: 2024-11 · check-in free text available
2021-10-19
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

Outpatient clinic or urgent care clinic visit · 1 call case(s)
2021-10-22
Call successful
Completed over the phone
2021-10-23
Dose 3 — Pfizer-BioNTech
2021-10-23
Health check-in — day 0, dose 3
Feeling: Good · None

Adult check-in
2021-10-24
Health check-in — days 1–6 daily, dose 3
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness, Nausea

Adult check-in
2021-10-25
Health check-in — days 1–6 daily, dose 3
Feeling: Good · Site: Pain · None

Adult check-in
2021-10-26
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-10-27
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-10-28
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-10-29
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-10-30
Health check-in — day 7, dose 3
Feeling: Good · None

Adult check-in
2021-11-06
Health check-in — day 14, dose 3
Feeling: Good

Adult check-in
2021-11-13
Health check-in — day 21, dose 3
Feeling: Good

Adult check-in
2021-11-20
Health check-in — day 28, dose 3
Feeling: Good

Adult check-in
2021-11-27
Health check-in — day 35, dose 3
Feeling: Good

Adult check-in
2021-12-04
Health check-in — day 42, dose 3
Feeling: Good

Adult check-in
2022-01-22
Survey response — 3 months, dose 3
MedDRA: Cough, Headache, Nasal congestion, Nasopharyngitis — Feeling: Good

Free text: Cold symptoms headache, stuffy nose, cough

MedDRA releases: 2024-11 · check-in free text available
2022-04-23
Health check-in — 6 months, dose 3
Feeling: Good

Adult check-in
2022-10-08
Dose 4 — Pfizer-BioNTech
Co-administered: Flu
2022-10-14
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-10-15
Health check-in — day 7, dose 4
Feeling: Good · None

Adult check-in
2022-10-22
Survey response — day 14, dose 4
MedDRA: Nasopharyngitis, Oropharyngeal pain — Feeling: Fair

Free text: Cold, sore throat

MedDRA releases: 2024-11 · check-in free text available
2022-10-29
Health check-in — day 21, dose 4
Feeling: Good

Adult check-in
2022-11-05
Health check-in — day 28, dose 4
Feeling: Good

Adult check-in
2022-11-12
Health check-in — day 35, dose 4
Feeling: Good

Adult check-in
2022-11-19
Health check-in — day 42, dose 4
Feeling: Good

Adult check-in
2023-01-07
Health check-in — 3 months, dose 4
Feeling: Good

Adult check-in
2023-04-10
Health check-in — 6 months, dose 4
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-30	Pfizer-BioNTech
2	2021-04-20	Pfizer-BioNTech
3	2021-10-23	Pfizer-BioNTech	No
4	2022-10-08	Pfizer-BioNTech	Flu

Call center

Reported	Outcome	VAERS-related outcome
2021-04-22	Successful	Completed over the phone
2021-10-19	Successful 2021-10-22	Completed over the phone

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-21

Systemic reaction (other): Dark urine

2021-04-22

Systemic reaction (other): UTI

Release 10 — 6 months, dose 2

2021-10-19

Symptoms: Stomach bug with diarrhea immediately followed by a UTI

Release 11 — 3 months, dose 3

2022-01-22

Symptoms: Cold symptoms headache, stuffy nose, cough

Release 12 — day 14, dose 4

2022-10-22

Symptoms: Cold, sore throat

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	Cough	·	·	✓
SD	Diarrhoea	·	·	✓
SD	Gastroenteritis viral	·	·	✓
SD	Headache	·	·	✓
SD	Nasal congestion	·	·	✓
SD	Nasopharyngitis	·	·	✓
SD	Oropharyngeal pain	·	·	✓
SD	Urinary tract infection	·	·	✓
SRO	Chromaturia	✓	✓	✓
SRO	Urinary tract infection	✓	✓	✓

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