N4C-91004-20888 · OpenVSafe

Timeline

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

2021-03-24
Registered in v-safe
2021-03-24
Dose 1 — Pfizer-BioNTech
2021-03-24
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-03-25
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-26
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-28
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-29
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-30
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-31
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-07
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-04-14
Dose 2 — Pfizer-BioNTech
2021-04-15
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Joint pains

Adult check-in
2021-04-16
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Joint pains

Adult check-in
2021-04-17
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Joint pains

Adult check-in
2021-04-19
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Joint pains

Adult check-in
2021-04-20
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-21
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-04-28
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-05
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-12
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-05-19
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-05-28
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-07-14
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-20
Dose 3 — Pfizer-BioNTech
2022-03-10
Dose 4 — Moderna
2022-04-14
Health check-in — 12 months, dose 2
Feeling: Good

Adult check-in
2022-04-14
Health check-in — day 35, dose 4
Feeling: Good

Adult check-in
2022-04-21
Health check-in — day 42, dose 4
Feeling: Good

Adult check-in
2022-06-09
Survey response — 3 months, dose 4
MedDRA: Chills, Pain — 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 · Telehealth, virtual health, or email health consultation

Free text: Chills and body aches

MedDRA releases: 2024-11 · check-in free text available
2022-06-09
Report sent to call center — 3 months, dose 4
Be unable to work or attend school · Be unable to do your normal daily activities · Get care from a doctor or other healthcare pr

Telehealth, virtual health, or email health consultation · 1 call case(s)
2022-06-10
Call 1 — Could Not Reach Participant
2022-06-15
Call 2 — Could Not Reach Participant

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-24	Pfizer-BioNTech
2	2021-04-14	Pfizer-BioNTech
3	2021-10-20	Pfizer-BioNTech	No
4	2022-03-10	Moderna	No

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 12 — 3 months, dose 4

2022-06-09

Symptoms: Chills and body aches

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	Chills	·	·	✓
SD	Pain	·	·	✓

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