4C7-31860-70422 · OpenVSafe

Timeline

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

2021-01-26
Dose 1 — Pfizer-BioNTech
2021-01-28
Registered in v-safe
2021-01-28
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-01-29
Survey response — days 1–6 daily, dose 1
MedDRA: Asthenia, Dysgeusia, Fatigue, Headache, Paraesthesia oral — Feeling: Good · Headache

Free text: I have had only mild symptoms after the 1st day. The symptoms 5 minutes after shot was tingling in top of mouth and slight metal taste. 3 hours after shot had moderate headache, tiredness, felt weak. Fell asleep for 1 hour and woke up feeling fine. Only issues since first day has been a mild headache in the morning and nothing after that.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-30
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Headache

Adult check-in
2021-01-31
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-02-01
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-02-02
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-02-09
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-02-16
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-02-22
Dose 2 — Pfizer-BioNTech
2021-02-22
Health check-in — day 0, dose 2
Feeling: Good · Headache

Adult check-in
2021-02-23
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Chills, Headache, Fatigue or tiredness

Adult check-in
2021-02-24
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-02-25
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-26
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-27
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-02-28
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness, Rash, not including the immediate area around the injection site

Adult check-in
2021-03-01
Health check-in — day 7, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-03-08
Survey response — day 14, dose 2
MedDRA: Fatigue — Feeling: Fair · Be unable to do your normal daily activities

Free text: Increased tiredness

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-15
Health check-in — day 21, dose 2
Feeling: Fair

Adult check-in
2021-03-22
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-03-29
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-04-05
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-05-24
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-08-23
Survey response — 6 months, dose 2
MedDRA: Fatigue, Headache — Feeling: Fair · Be unable to do your normal daily activities

Free text: Headaches, tiredness

MedDRA releases: 2021-09,2024-11 · check-in free text available
2022-02-22
Survey response — 12 months, dose 2
MedDRA: Brain fog, Fatigue, Headache, Office visit, Pain — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional

Free text: Symptoms: Headaches, body aches, pain, tiredness, brain fog · Healthcare visit (other): PCP appointment

MedDRA releases: 2024-11 · check-in free text available
2022-02-22
Report sent to call center — 12 months, dose 2
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2022-02-24
Call 1 — Could Not Reach Participant
2022-03-01
Call 2 — Could Not Reach Participant

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-26	Pfizer-BioNTech
2	2021-02-22	Pfizer-BioNTech

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 3 — days 1–6 daily, dose 1

2021-01-29

Systemic reaction (other): I have had only mild symptoms after the 1st day. The symptoms 5 minutes after shot was tingling in top of mouth and slight metal taste. 3 hours after shot had moderate headache, tiredness, felt weak. Fell asleep for 1 hour and woke up feeling fine. Only issues since first day has been a mild headache in the morning and nothing after that.

Release 5 — day 14, dose 2

2021-03-08

Symptoms: Increased tiredness

Release 9 — 6 months, dose 2

2021-08-23

Symptoms: Headaches, tiredness

Release 11 — 12 months, dose 2

2022-02-22

Symptoms: Headaches, body aches, pain, tiredness, brain fog

Healthcare visit (other): PCP appointment

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	Office visit	·	·	✓
SD	Brain fog	·	·	✓
SD	Fatigue	✓	✓	✓
SD	Headache	✓	·	✓
SD	Pain	·	·	✓
SRO	Asthenia	✓	✓	✓
SRO	Dysgeusia	✓	✓	✓
SRO	Fatigue	✓	✓	✓
SRO	Headache	✓	✓	✓
SRO	Paraesthesia oral	✓	✓	✓

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