4CN-20837-37955

2 vaccinations 5 coded responses 19 check-ins 5 free-text entries 1 call case

Sex: Female
Age at first dose: 46-50
ZIP prefix: 172 / PA
Registered: 2021-03-17

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
1929620 (opens in a new window)	high	9 / 11	2	5 of 25 VAERS symptoms	same dose (2)	PA matches	2021-04-02 / 2021-04-03 / 2021-12-07 received the same day as the last call	case 1052153

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

2021-03-12
Dose 1 — Pfizer-BioNTech
2021-03-17
Registered in v-safe
2021-03-17
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-18
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-19
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-03-26
Survey response — day 14, dose 1
MedDRA: Fatigue, Feeling abnormal, Headache — Feeling: Fair

Free text: Probably just my seasonal allergies, but for the last two days I have been having low grade headache and fever (no higher than 99.3, mostly at end of day) and feel foggy headed and tired.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-02
Dose 2 — Pfizer-BioNTech
2021-04-03
Survey response — days 1–6 daily, dose 2
MedDRA: Feeling hot, Muscle tightness — Feeling: Fair · Site: Pain · Fever · Chills, Headache, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Free text: My upper arms and face are warm and tight, like after a mild sunburn. No rash or discoloration.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-04
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain, Swelling · Fever · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness, Nausea, Diarrhea, Abdominal pain · Be unable to do your normal daily activities

Adult check-in
2021-04-05
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain, Redness, Swelling · Headache, Fatigue or tiredness, Diarrhea, Abdominal pain

Adult check-in
2021-04-06
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain, Redness, Swelling · Fatigue or tiredness, Diarrhea

Adult check-in
2021-04-07
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Fatigue or tiredness, Diarrhea

Adult check-in
2021-04-08
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Diarrhea

Adult check-in
2021-04-09
Survey response — day 7, dose 2
MedDRA: Gastrointestinal sounds abnormal — Feeling: Fair · Headache, Fatigue or tiredness

Free text: Intestines grumbly, no bowel movements

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-16
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-23
Survey response — day 21, dose 2
MedDRA: Abdominal pain, Diarrhoea, Faeces soft, Infrequent bowel movements, Nausea — Feeling: Fair · Be unable to do your normal daily activities

Free text: Since my second dose I have had intermittent intestinal issues - abdominal cramping, infrequent bowel movements, frequent soft and loose stools, and one instance of moderate abdominal pain with nausea that lasted about an hour.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-30
Health check-in — day 28, dose 2
Feeling: Fair

Adult check-in
2021-05-07
Health check-in — day 35, dose 2
Feeling: Fair

Adult check-in
2021-05-14
Health check-in — day 42, dose 2
Feeling: Fair

Adult check-in
2021-07-02
Health check-in — 3 months, dose 2
Feeling: Fair

Adult check-in
2021-10-01
Survey response — 6 months, dose 2
MedDRA: Office visit, SARS-CoV-2 test negative, Upper respiratory tract infection — Feeling: Poor · Be unable to work or attend school, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional

Free text: Symptoms: Upper respiratory infection. Dr did a rapid test for COVID which came up negative. · Healthcare visit (other): Regular Dr appointment

MedDRA releases: 2024-11 · check-in free text available
2021-10-01
Report sent to call center — 6 months, dose 2
Be unable to work or attend school · Be unable to do your normal daily activities · Get care from a doctor or other healthcare pr

1 call case(s)
2021-12-07
Call 1 — Left Voicemail
2021-12-07
Call successful
Completed over the phone
2022-04-02
Health check-in — 12 months, dose 2
Feeling: Poor

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-12	Pfizer-BioNTech
2	2021-04-02	Pfizer-BioNTech

Call center

1 call center case

1 successful

VAERS report filed, before or during a call: 1

See the call center timeline

Free text

Release 6 — day 14, dose 1

2021-03-26

Symptoms: Probably just my seasonal allergies, but for the last two days I have been having low grade headache and fever (no higher than 99.3, mostly at end of day) and feel foggy headed and tired.

Release 6 — days 1–6 daily, dose 2

2021-04-03

Systemic reaction (other): My upper arms and face are warm and tight, like after a mild sunburn. No rash or discoloration.

Release 7 — day 7, dose 2

2021-04-09

Systemic reaction (other): Intestines grumbly, no bowel movements

Release 7 — day 21, dose 2

2021-04-23

Symptoms: Since my second dose I have had intermittent intestinal issues - abdominal cramping, infrequent bowel movements, frequent soft and loose stools, and one instance of moderate abdominal pain with nausea that lasted about an hour.

Release 9 — 6 months, dose 2

2021-10-01

Symptoms: Upper respiratory infection. Dr did a rapid test for COVID which came up negative.

Healthcare visit (other): Regular Dr appointment

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	Abdominal pain	✓	✓	✓
SD	Diarrhoea	✓	✓	✓
SD	Faeces soft	✓	✓	✓
SD	Fatigue	✓	✓	✓
SD	Feeling abnormal	✓	✓	✓
SD	Headache	✓	✓	✓
SD	Infrequent bowel movements	✓	✓	✓
SD	Nausea	✓	✓	✓
SD	Office visit	·	·	✓
SD	SARS-CoV-2 test negative	·	·	✓
SD	Upper respiratory tract infection	·	·	✓
SRO	Feeling hot	✓	✓	✓
SRO	Gastrointestinal sounds abnormal	✓	✓	✓
SRO	Muscle tightness	✓	✓	✓

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