YXL-18197-70285

2 vaccinations 10 coded responses 22 check-ins 10 free-text entries 2 call cases

Sex: Male
Age at first dose: 66+
ZIP prefix: 923 / CA
Registered: 2021-02-11

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

Possible VAERS report

VAERS ID	Confidence	Score	Runner-up	Shared symptoms	Dose	State	VAERS vaccinated / onset / received	Call case
1670660 (opens in a new window)	high	8 / 11	3	0 of 5 VAERS symptoms	same dose (2)	CA matches	2021-03-03 / 2021-03-03 / 2021-09-03 received the same day as the last call	case 982798

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

2021-02-11
Registered in v-safe
2021-02-11
Dose 1 — Pfizer-BioNTech
2021-02-11
Health check-in — day 0, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-12
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain · Fever · Fatigue or tiredness

Adult check-in
2021-02-13
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Fatigue or tiredness

Adult check-in
2021-02-14
Survey response — days 1–6 daily, dose 1
MedDRA: Fatigue — Feeling: Fair · Fatigue or tiredness

Free text: Been very fatigued the last few days

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-02-15
Survey response — days 1–6 daily, dose 1
MedDRA: Balance disorder, Fatigue — Feeling: Fair · Muscle or body aches, Fatigue or tiredness

Free text: Im very fatigued and when standing I occasionally lose my balance.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-02-16
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-17
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Fatigue or tiredness

Adult check-in
2021-02-18
Health check-in — day 7, dose 1
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-25
Survey response — day 14, dose 1
MedDRA: Lethargy, Weight increased — Feeling: Fair

Free text: Still lethargic and have gained weight. Maybe not related.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-03
Dose 2 — Pfizer-BioNTech
2021-03-06
Survey response — days 1–6 daily, dose 2
MedDRA: Pollakiuria — Feeling: Fair · Site: Pain · Joint pains, Muscle or body aches, Fatigue or tiredness, Abdominal pain · Be unable to do your normal daily activities

Free text: Constant Peeing

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-07
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-08
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-09
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-10
Health check-in — day 7, dose 2
Feeling: Poor · Site: Pain · Chills, Headache, Joint pains, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-03-20
Survey response — day 14, dose 2
MedDRA: Fatigue — Feeling: Fair

Free text: Fatigue

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-24
Survey response — day 21, dose 2
MedDRA: Fall, Spinal column injury — Feeling: Fair

Free text: I fell and hurt my tail bone

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-31
Health check-in — day 28, dose 2
Feeling: Fair

Adult check-in
2021-04-07
Health check-in — day 35, dose 2
Feeling: Fair

Adult check-in
2021-04-14
Survey response — day 42, dose 2
MedDRA: Memory impairment — Feeling: Fair

Free text: My memory is continuing to get worse.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-06-02
Survey response — 3 months, dose 2
MedDRA: Balance disorder, Stress — Feeling: Fair

Free text: Very, very stressed. I also lose my balance at times when I bend down to pick something up.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-09-01
Survey response — 6 months, dose 2
MedDRA: Balance disorder, Fall, Office visit — Feeling: Fair · Get care from a doctor or other healthcare professional

Free text: Symptoms: My equilibrium is not good. I keep falling. I see a Neurologist in a few weeks. · Healthcare visit (other): Dr. Visit

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-09-01
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-09-03
Call 1 — Left Voicemail
2021-09-03
Call successful
Completed over the phone
2022-03-05
Survey response — 12 months, dose 2
MedDRA: Back pain, Ear discomfort, Gait disturbance, Pain in extremity — Feeling: Fair · Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Problems walking. Leg and back pain. Clogged right ear.

MedDRA releases: 2024-11 · check-in free text available
2022-03-05
Report sent to call center — 12 months, dose 2
Get care from a doctor or other healthcare professional

Emergency room or emergency department visit · 1 call case(s)
2022-03-08
Call 1 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-02-11	Pfizer-BioNTech
2	2021-03-03	Pfizer-BioNTech

Call center

Reported	Outcome	VAERS-related outcome
2021-09-01	Successful 2021-09-03	Completed over the phone
2022-03-05	Unsuccessful

Free text

Release 4 — days 1–6 daily, dose 1

2021-02-14

Systemic reaction (other): Been very fatigued the last few days

2021-02-15

Systemic reaction (other): Im very fatigued and when standing I occasionally lose my balance.

Release 4 — day 14, dose 1

2021-02-25

Symptoms: Still lethargic and have gained weight. Maybe not related.

Release 5 — days 1–6 daily, dose 2

2021-03-06

Systemic reaction (other): Constant Peeing

Release 6 — day 14, dose 2

2021-03-20

Symptoms: Fatigue

Release 6 — day 21, dose 2

2021-03-24

Symptoms: I fell and hurt my tail bone

Release 7 — day 42, dose 2

2021-04-14

Symptoms: My memory is continuing to get worse.

Release 8 — 3 months, dose 2

2021-06-02

Symptoms: Very, very stressed. I also lose my balance at times when I bend down to pick something up.

Release 9 — 6 months, dose 2

2021-09-01

Symptoms: My equilibrium is not good. I keep falling. I see a Neurologist in a few weeks.

Healthcare visit (other): Dr. Visit

Release 11 — 12 months, dose 2

2022-03-05

Symptoms: Problems walking. Leg and back pain. Clogged right ear.

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
HCVO	Office visit	✓	·	✓
SD	Back pain	·	·	✓
SD	Balance disorder	✓	✓	✓
SD	Ear discomfort	·	·	✓
SD	Fall	✓	✓	✓
SD	Fatigue	✓	✓	✓
SD	Gait disturbance	·	·	✓
SD	Lethargy	✓	✓	✓
SD	Memory impairment	✓	✓	✓
SD	Pain in extremity	·	·	✓
SD	Spinal column injury	✓	✓	✓
SD	Stress	✓	✓	✓
SD	Weight increased	✓	✓	✓
SRO	Balance disorder	✓	✓	✓
SRO	Fatigue	✓	✓	✓
SRO	Pollakiuria	✓	✓	✓

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