4VS-21669-21964 · OpenVSafe

Timeline

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

2021-08-18
Dose 1 — Pfizer-BioNTech
2021-09-10
Registered in v-safe
2021-09-10
Survey response — day 21, dose 1
MedDRA: Postural orthostatic tachycardia syndrome — Feeling: Fair · Be unable to work or attend school, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: POTS

MedDRA releases: 2024-11 · check-in free text available
2021-09-10
Report sent to call center — day 21, dose 1
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)
2021-09-14
Call successful
Participant prefers to complete VAERS report online
2021-09-15
Survey response — day 28, dose 1
MedDRA: Heart rate increased, Palpitations — Feeling: Fair · Be unable to do your normal daily activities

Free text: Heart palpitations, high heart rate with positional changes

MedDRA releases: 2024-11 · check-in free text available
2021-09-22
Health check-in — day 35, dose 1
Feeling: Good

Adult check-in
2021-10-01
Health check-in — day 42, dose 1
Feeling: Good

Adult check-in
2021-11-19
Health check-in — 3 months, dose 1
Feeling: Good

Adult check-in
2022-08-18
Survey response — 12 months, dose 1
MedDRA: Postural orthostatic tachycardia syndrome — Feeling: Fair · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: I now have POTS from the Pfizer vaccine

MedDRA releases: 2024-11 · check-in free text available
2022-08-18
Report sent to call center — 12 months, dose 1
Get care from a doctor or other healthcare professional

Outpatient clinic or urgent care clinic visit · 1 call case(s)
2022-08-19
Call successful
Participant prefers to complete VAERS report online

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-08-18	Pfizer-BioNTech	No

Call center

Reported	Outcome	VAERS-related outcome
2021-09-10	Successful 2021-09-14	Participant prefers to complete VAERS report online
2022-08-18	Successful 2022-08-19	Participant prefers to complete VAERS report online

Free text

Release 9 — day 21, dose 1

2021-09-10

Symptoms: POTS

Release 9 — day 28, dose 1

2021-09-15

Symptoms: Heart palpitations, high heart rate with positional changes

Release 12 — 12 months, dose 1

2022-08-18

Symptoms: I now have POTS from the Pfizer vaccine

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	Heart rate increased	·	·	✓
SD	Palpitations	·	·	✓
SD	Postural orthostatic tachycardia syndrome	·	·	✓

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