4C6-27868-27422

2 vaccinations 4 coded responses 24 check-ins 4 free-text entries 1 call case

Sex: Female
Age at first dose: 21-25
ZIP prefix: 786 / TX
Registered: 2021-03-16

Relationship: Self
Race: White
Ethnicity: Hispanic or Latino

Possible VAERS report

VAERS ID	Confidence	Score	Runner-up	Shared symptoms	Dose	State	VAERS vaccinated / onset / received	Call case
1889490 (opens in a new window)	high	9 / 11	—	2 of 12 VAERS symptoms	same dose (2)	TX matches	2021-04-06 / 2021-05-01 / 2021-11-22 received the same day as the last call	case 1064500

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

2021-03-16
Registered in v-safe
2021-03-16
Dose 1 — Pfizer-BioNTech
2021-03-16
Health check-in — day 0, dose 1
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness · Be unable to work

Adult check-in
2021-03-17
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fatigue or tiredness, Diarrhea

Adult check-in
2021-03-18
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Redness · Headache, Fatigue or tiredness, Abdominal pain · Be unable to work

Adult check-in
2021-03-19
Survey response — days 1–6 daily, dose 1
MedDRA: Back pain, Disturbance in attention — Feeling: Fair · Headache, Joint pains, Fatigue or tiredness, Diarrhea · Be unable to do your normal daily activities

Free text: Lack of concentration, low back pain (noticed yesterday but forgot to include),

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-20
Health check-in — days 1–6 daily, dose 1
Feeling: Poor · Headache, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-21
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-22
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-23
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-03-30
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-04-06
Dose 2 — Pfizer-BioNTech
2021-04-06
Health check-in — day 0, dose 2
Feeling: Good · None

Adult check-in
2021-04-07
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · Fever · Muscle or body aches, Fatigue or tiredness, Diarrhea, Abdominal pain · Be unable to work

Adult check-in
2021-04-08
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Fatigue or tiredness · Be unable to work or attend school, Be unable to do your normal daily activities

Adult check-in
2021-04-09
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Headache, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities

Adult check-in
2021-04-10
Survey response — days 1–6 daily, dose 2
MedDRA: Menstrual disorder — Feeling: Fair · Fatigue or tiredness

Free text: The shot induced my period five days earlier than expected. I read that other women are experiencing the same. It also happened with my first Covid shot but I didnt think anything of it

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-11
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-12
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-04-13
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-04-20
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-27
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-06
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-05-11
Survey response — day 35, dose 2
MedDRA: Cough, Diarrhoea, Headache, Respiratory tract congestion — Feeling: Poor · Be unable to work, Be unable to do your normal daily activities

Free text: Severe cough, congestion, headache, diarrhea - I think its a sinus infection but havent been to the doctor to see

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-18
Health check-in — day 42, dose 2
Feeling: Fair

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

Adult check-in
2021-10-05
Survey response — 6 months, dose 2
MedDRA: Heavy menstrual bleeding — Feeling: Fair · Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation

Free text: Extremely heavy periods

MedDRA releases: 2024-11 · check-in free text available
2021-10-05
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

Telehealth, virtual health, or email health consultation · 1 call case(s)
2021-11-22
Call 1 — Left Voicemail
2021-11-22
Call successful
Completed over the phone

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-16	Pfizer-BioNTech
2	2021-04-06	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 5 — days 1–6 daily, dose 1

2021-03-19

Systemic reaction (other): Lack of concentration, low back pain (noticed yesterday but forgot to include),

Release 7 — days 1–6 daily, dose 2

2021-04-10

Systemic reaction (other): The shot induced my period five days earlier than expected. I read that other women are experiencing the same. It also happened with my first Covid shot but I didnt think anything of it

Release 8 — day 35, dose 2

2021-05-11

Symptoms: Severe cough, congestion, headache, diarrhea - I think its a sinus infection but havent been to the doctor to see

Release 10 — 6 months, dose 2

2021-10-05

Symptoms: Extremely heavy periods

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	Headache	✓	✓	✓
SD	Heavy menstrual bleeding	·	·	✓
SD	Respiratory tract congestion	✓	✓	✓
SRO	Back pain	✓	✓	✓
SRO	Disturbance in attention	✓	✓	✓
SRO	Menstrual disorder	✓	✓	✓

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