YCP-54421-82604 · OpenVSafe

Timeline

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

2021-02-26
Dose 1 — Pfizer-BioNTech
2021-03-18
Registered in v-safe
2021-03-18
Survey response — day 14, dose 1
MedDRA: Dyspnoea, Emergency care, Headache, Hypotension, Immediate post-injection reaction, Loss of consciousness, Nausea, Oxygen saturation decreased, Paraesthesia, Tinnitus — Feeling: Fair · Be unable to work, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Received vac. @ 10 a.m. on 2/26/21. @10:05 tingling in whole arm & toes began. @10:07-11 mild nausea @ 10:15 passed out. Came to with difficulty breathing, very low oxygen, low bp, more nausea, extremely severe headache. Later mild ear ringing. ER

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-18
Report sent to call center — day 14, dose 1
Be unable to work · Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-03-19
Dose 2 — Pfizer-BioNTech
2021-04-02
Survey response — day 14, dose 2
MedDRA: Headache, Hypoaesthesia, Nausea, Presyncope, Tinnitus — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Ongoing tinnitus since first covid shot.Not sure the point of these checkins: I passed out, had a severe headache/nausea/numbness from first shot. Filled out this checkin report and never received a phone call or contact from CDC.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-02
Report sent to call center — day 14, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-06-14
Call 1 — Could Not Reach Participant
2021-06-16
Call 2 — Could Not Reach Participant
2021-06-17
Call 1 — Could Not Reach Participant

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-02-26	Pfizer-BioNTech
2	2021-03-19	Pfizer-BioNTech

Call center

Reported	Outcome	VAERS-related outcome
2021-03-18	Unsuccessful
2021-04-02	Unsuccessful

Free text

Release 5 — day 14, dose 1

2021-03-18

Symptoms: Received vac. @ 10 a.m. on 2/26/21. @10:05 tingling in whole arm & toes began. @10:07-11 mild nausea @ 10:15 passed out. Came to with difficulty breathing, very low oxygen, low bp, more nausea, extremely severe headache. Later mild ear ringing. ER cut off by CDC

Release 6 — day 14, dose 2

2021-04-02

Symptoms: Ongoing tinnitus since first covid shot.Not sure the point of these checkins: I passed out, had a severe headache/nausea/numbness from first shot. Filled out this checkin report and never received a phone call or contact from CDC.

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	Dyspnoea	✓	✓	✓
SD	Emergency care	✓	✓	✓
SD	Headache	✓	✓	✓
SD	Hypoaesthesia	✓	✓	✓
SD	Hypotension	✓	✓	✓
SD	Immediate post-injection reaction	✓	✓	✓
SD	Loss of consciousness	✓	✓	✓
SD	Nausea	✓	✓	✓
SD	Oxygen saturation decreased	✓	✓	✓
SD	Paraesthesia	✓	✓	✓
SD	Presyncope	✓	✓	✓
SD	Tinnitus	✓	✓	✓

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