ZCS-11023-46754 · OpenVSafe

Timeline

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

2021-03-16
Dose 1 — Pfizer-BioNTech
2021-03-19
Registered in v-safe
2021-03-19
Survey response — days 1–6 daily, dose 1
MedDRA: Vertigo — Feeling: Fair · Site: Pain · Chills, Headache, Nausea, Vomiting, Diarrhea · Be unable to work, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation

Free text: Vertigo

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-19
Report sent to call center — days 1–6 daily, 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)
2021-03-20
Survey response — days 1–6 daily, dose 1
MedDRA: Dizziness — Feeling: Fair · Headache, Nausea · Be unable to do your normal daily activities

Free text: Dizziness

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-23
Survey response — day 7, dose 1
MedDRA: Dizziness — Feeling: Fair

Free text: Dizziness

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-30
Health check-in — day 14, dose 1
Feeling: Fair

Adult check-in
2021-04-06
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-04-10
Dose 2 — Pfizer-BioNTech
2021-04-13
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness — Feeling: Good · Site: Pain · Be unable to work

Free text: With first and now second dose experiencing dizziness.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-14
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness, Vaccine positive rechallenge, Vertigo — Feeling: Good

Free text: I am still experiencing some dizzy/lightheadedness. I had very bad vertigo with first dose too.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-15
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness — Feeling: Good

Free text: Dizziness/lightheadedness - can still function but have periodic episodes through day.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-16
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness — Feeling: Good

Free text: Still dizzy and lightheaded periodically through the day.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-17
Survey response — day 7, dose 2
MedDRA: Dizziness — Feeling: Good

Free text: Still experiencing Dizzy and lightheadedness periodically through the day. It is improving.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-24
Survey response — day 14, dose 2
MedDRA: Rash, Urticaria — Feeling: Good

Free text: I developed a hive like rash one week after 2nd dose on forearm of the arm I received shot. It went away in 4-5 days. I am feeling fine now.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-01
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2022-03-03
Call 1 — Could Not Reach Participant
2022-03-08
Call successful
Reported to VAERS voluntarily prior to GDIT contact

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-16	Pfizer-BioNTech
2	2021-04-10	Pfizer-BioNTech

Call center

Reported	Outcome	VAERS-related outcome
2021-03-19	Successful 2022-03-08	Reported to VAERS voluntarily prior to GDIT contact

Free text

Release 6 — days 1–6 daily, dose 1

2021-03-19

Systemic reaction (other): Vertigo

2021-03-20

Systemic reaction (other): Dizziness

Release 6 — day 7, dose 1

2021-03-23

Systemic reaction (other): Dizziness

Release 7 — days 1–6 daily, dose 2

2021-04-13

Systemic reaction (other): With first and now second dose experiencing dizziness.

2021-04-14

Systemic reaction (other): I am still experiencing some dizzy/lightheadedness. I had very bad vertigo with first dose too.

2021-04-15

Systemic reaction (other): Dizziness/lightheadedness - can still function but have periodic episodes through day.

2021-04-16

Systemic reaction (other): Still dizzy and lightheaded periodically through the day.

Release 7 — day 7, dose 2

2021-04-17

Systemic reaction (other): Still experiencing Dizzy and lightheadedness periodically through the day. It is improving.

Release 7 — day 14, dose 2

2021-04-24

Symptoms: I developed a hive like rash one week after 2nd dose on forearm of the arm I received shot. It went away in 4-5 days. I am feeling fine now.

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	Rash	✓	✓	✓
SD	Urticaria	✓	✓	✓
SRO	Dizziness	✓	✓	✓
SRO	Vaccine positive rechallenge	✓	✓	✓
SRO	Vertigo	✓	✓	✓

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