25M-11494-90316 · OpenVSafe

Timeline

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

2021-02-20
Dose 1 — Pfizer-BioNTech
2021-03-13
Registered in v-safe
2021-03-13
Dose 2 — Pfizer-BioNTech
2021-03-13
Health check-in — day 0, dose 2
Feeling: Good · None

Adult check-in
2021-03-14
Survey response — days 1–6 daily, dose 2
MedDRA: No adverse event — Feeling: Good

Free text: No

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-15
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-03-17
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-20
Survey response — day 7, dose 2
MedDRA: Adverse reaction — Feeling: Good · Muscle or body aches, Fatigue or tiredness

Free text: Slight symptoms

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-29
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-03
Survey response — day 21, dose 2
MedDRA: Fatigue, Memory impairment — Feeling: Fair

Free text: Fatigue and forgetfulness.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-12
Survey response — day 28, dose 2
MedDRA: Unevaluable event — Feeling: Fair

Free text: Nit as clear mentally. Was this the intent. I hear so many differing viewpoints. I wish there was a solid trustworthy source.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-17
Survey response — day 35, dose 2
MedDRA: Brain fog, Discharge, Pulmonary congestion — Feeling: Fair · Be unable to do your normal daily activities

Free text: Brain FogSinus drainage and lung congestion No fever

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-06-14
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-09-11
Survey response — 6 months, dose 2
MedDRA: Asthenia, Feeling abnormal, Hypotension, Office visit, Syncope — Feeling: Fair · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: Symptoms: Feeling weak and somewhat faint. I have not felt the same since taking the COVID-19 vaccination. · Healthcare visit (other): Routine follow-up visit with PCP. He said my blood pressure was too low. He changed m medications.

MedDRA releases: 2024-11 · check-in free text available
2021-09-11
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-09-15
Call 1 — Could Not Reach Participant
2021-09-20
Call 2 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-02-20	Pfizer-BioNTech
2	2021-03-13	Pfizer-BioNTech

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 5 — days 1–6 daily, dose 2

2021-03-14

Systemic reaction (other): No

Release 6 — day 7, dose 2

2021-03-20

Systemic reaction (other): Slight symptoms

Release 6 — day 21, dose 2

2021-04-03

Symptoms: Fatigue and forgetfulness.

Release 7 — day 28, dose 2

2021-04-12

Symptoms: Nit as clear mentally. Was this the intent. I hear so many differing viewpoints. I wish there was a solid trustworthy source.

Release 7 — day 35, dose 2

2021-04-17

Symptoms: Brain FogSinus drainage and lung congestion No fever

Release 9 — 6 months, dose 2

2021-09-11

Symptoms: Feeling weak and somewhat faint. I have not felt the same since taking the COVID-19 vaccination.

Healthcare visit (other): Routine follow-up visit with PCP. He said my blood pressure was too low. He changed m medications.

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	Hypotension	·	·	✓
HCVO	Office visit	·	·	✓
SD	Asthenia	·	·	✓
SD	Brain fog	✓	✓	✓
SD	Discharge	✓	✓	✓
SD	Fatigue	✓	✓	✓
SD	Feeling abnormal	·	·	✓
SD	Memory impairment	✓	✓	✓
SD	Pulmonary congestion	✓	✓	✓
SD	Syncope	·	·	✓
SD	Unevaluable event	✓	✓	✓
SRO	Adverse reaction	✓	✓	✓
SRO	No adverse event	✓	✓	✓

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