YZT-21024-20045

4 vaccinations 10 coded responses 40 check-ins 10 free-text entries 4 call cases

Sex: Female
Age at first dose: 51-55
ZIP prefix: 925 / CA
Registered: 2021-04-05

Relationship: Self
Race: Other
Ethnicity: Hispanic or Latino

Possible VAERS report

VAERS ID	Confidence	Score	Runner-up	Shared symptoms	Dose	State	VAERS vaccinated / onset / received	Call case
1761518 (opens in a new window)	high	10 / 11	1	4 of 11 VAERS symptoms	same dose (2)	CA matches	2021-04-05 / 2021-04-06 / 2021-10-05 received the same day as the last call	case 1060450

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

2021-03-15
Dose 1 — Pfizer-BioNTech
2021-04-05
Registered in v-safe
2021-04-05
Dose 2 — Pfizer-BioNTech
2021-04-05
Survey response — day 0, dose 2
MedDRA: Rhinorrhoea — Feeling: Fair · Headache

Free text: runny nose

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-06
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness, Nausea

Adult check-in
2021-04-07
Survey response — days 1–6 daily, dose 2
MedDRA: Lacrimation increased, Rhinorrhoea — Feeling: Fair · Site: Pain · Fever · Headache, Fatigue or tiredness · Be unable to do your normal daily activities

Free text: Runny nose and watery eyes

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-08
Survey response — days 1–6 daily, dose 2
MedDRA: Lacrimation increased, Rhinorrhoea — Feeling: Fair · Site: Pain · Fever · Headache, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Free text: runny nose and watery eyes

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-09
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Adult check-in
2021-04-10
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Adult check-in
2021-04-11
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Fever · Headache, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Adult check-in
2021-04-12
Health check-in — day 7, dose 2
Feeling: Fair · Headache, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Adult check-in
2021-04-19
Survey response — day 14, dose 2
MedDRA: Dyspnoea, Fatigue, Headache, Palpitations — Feeling: Fair · Be unable to do your normal daily activities

Free text: I've had shortness of breath and heart palpations and checked with my cardiologist. I still have headaches and fatigue since my second Pfizer shot on 4/5/2021

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-26
Health check-in — day 21, dose 2
Feeling: Fair

Adult check-in
2021-05-03
Survey response — day 28, dose 2
MedDRA: Chest discomfort, Dyspnoea, Fatigue, Headache — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation, Outpatient clinic or urgent care clinic visit

Free text: Still having shortness of breath, chest pressure, headaches and extreme fatigue.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-03
Report sent to call center — day 28, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-05-10
Survey response — day 35, dose 2
MedDRA: Chest discomfort, Dyspnoea, Fatigue — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation, Outpatient clinic or urgent care clinic visit

Free text: Shortness of breath, chest pressure, fatigue

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-10
Report sent to call center — day 35, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-05-17
Survey response — day 42, dose 2
MedDRA: Dyspnoea, Palpitations — Feeling: Fair · Be unable to do your normal daily activities

Free text: Chest palpations and shortness of breath

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-28
Call successful
Completed over the phone
2021-10-04
Survey response — 6 months, dose 2
MedDRA: Fatigue, Thrombosis — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation, Outpatient clinic or urgent care clinic visit, Emergency room or emergency department visit

Free text: I have developed blood clots and I stil have fatigue.

MedDRA releases: 2024-11 · check-in free text available
2021-10-04
Report sent to call center — 6 months, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

Telehealth, virtual health, or email health consultation · Outpatient clinic or urgent care clinic visit · Emergency room or emergency department visit · 1 call case(s)
2021-10-05
Call successful
Completed over the phone
2022-01-24
Dose 3 — Pfizer-BioNTech
2022-01-28
Survey response — days 1–6 daily, dose 3
MedDRA: Pain in extremity — Feeling: Good · Headache, Fatigue or tiredness

Free text: Arm soreness

MedDRA releases: 2024-11 · check-in free text available
2022-01-29
Health check-in — days 1–6 daily, dose 3
Feeling: Fair · Headache, Fatigue or tiredness

Adult check-in
2022-01-30
Health check-in — days 1–6 daily, dose 3
Feeling: Fair · Headache, Fatigue or tiredness

Adult check-in
2022-01-31
Health check-in — day 7, dose 3
Feeling: Fair · Headache, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2022-02-07
Health check-in — day 14, dose 3
Feeling: Fair

Adult check-in
2022-02-14
Health check-in — day 21, dose 3
Feeling: Fair

Adult check-in
2022-02-23
Health check-in — day 28, dose 3
Feeling: Fair

Adult check-in
2022-02-28
Health check-in — day 35, dose 3
Feeling: Fair

Adult check-in
2022-03-07
Survey response — day 42, dose 3
MedDRA: Chest discomfort, Dyspnoea, Headache, Office visit — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional

Free text: Symptoms: Shortness of breath, chest pressure, increased headaches · Healthcare visit (other): In office visit

MedDRA releases: 2024-11 · check-in free text available
2022-03-07
Report sent to call center — day 42, dose 3
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2022-03-08
Call 1 — Left Voicemail
2022-04-25
Health check-in — 3 months, dose 3
Feeling: Fair

Adult check-in
2022-05-23
Dose 4 — Pfizer-BioNTech
Co-administered: Other
2022-05-23
Health check-in — day 0, dose 4
Feeling: Good · None

Adult check-in
2022-05-24
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain · Fever · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-05-25
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain · Fever · Chills, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-05-26
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain · Fever · Headache, Fatigue or tiredness, Diarrhea · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-05-27
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-05-28
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Headache, Fatigue or tiredness, Nausea, Diarrhea · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-05-29
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Headache, Fatigue or tiredness, Nausea, Diarrhea · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-06-01
Health check-in — day 7, dose 4
Feeling: Fair · Headache, Fatigue or tiredness, Nausea · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2022-06-06
Health check-in — day 14, dose 4
Feeling: Fair

Adult check-in
2022-06-15
Health check-in — day 21, dose 4
Feeling: Fair

Adult check-in
2022-06-20
Health check-in — day 28, dose 4
Feeling: Fair

Adult check-in
2022-06-29
Health check-in — day 35, dose 4
Feeling: Fair

Adult check-in
2022-07-04
Health check-in — day 42, dose 4
Feeling: Fair

Adult check-in
2022-08-22
Health check-in — 3 months, dose 4
Feeling: Fair

Adult check-in
2022-11-23
Health check-in — 6 months, dose 4
Feeling: Fair

Adult check-in
2023-05-25
Health check-in — 12 months, dose 4
Feeling: Fair

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-15	Pfizer-BioNTech
2	2021-04-05	Pfizer-BioNTech
3	2022-01-24	Pfizer-BioNTech	No
4	2022-05-23	Pfizer-BioNTech	Other

Call center

Reported	Outcome	VAERS-related outcome
2021-05-03	Successful	Completed over the phone
2021-05-10	Successful 2021-05-28	Completed over the phone
2021-10-04	Successful 2021-10-05	Completed over the phone
2022-03-07	Unsuccessful

Free text

Release 6 — day 0, dose 2

2021-04-05

Systemic reaction (other): runny nose

Release 7 — days 1–6 daily, dose 2

2021-04-07

Systemic reaction (other): Runny nose and watery eyes

2021-04-08

Systemic reaction (other): runny nose and watery eyes

Release 7 — day 14, dose 2

2021-04-19

Symptoms: I've had shortness of breath and heart palpations and checked with my cardiologist. I still have headaches and fatigue since my second Pfizer shot on 4/5/2021

Release 8 — day 28, dose 2

2021-05-03

Symptoms: Still having shortness of breath, chest pressure, headaches and extreme fatigue.

Release 8 — day 35, dose 2

2021-05-10

Symptoms: Shortness of breath, chest pressure, fatigue

Release 8 — day 42, dose 2

2021-05-17

Symptoms: Chest palpations and shortness of breath

Release 9 — 6 months, dose 2

2021-10-04

Symptoms: I have developed blood clots and I stil have fatigue.

Release 11 — days 1–6 daily, dose 3

2022-01-28

Systemic reaction (other): Arm soreness

Release 11 — day 42, dose 3

2022-03-07

Symptoms: Shortness of breath, chest pressure, increased headaches

Healthcare visit (other): In office visit

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	Chest discomfort	✓	✓	✓
SD	Dyspnoea	✓	✓	✓
SD	Fatigue	✓	✓	✓
SD	Headache	✓	✓	✓
SD	Palpitations	✓	✓	✓
SD	Thrombosis	·	·	✓
SRO	Lacrimation increased	✓	✓	✓
SRO	Pain in extremity	·	·	✓
SRO	Rhinorrhoea	✓	✓	✓

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