FKX-27405-28296 · OpenVSafe

Timeline

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

2020-12-18
Dose 1 — Pfizer-BioNTech
2020-12-19
Registered in v-safe
2020-12-19
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain · Chills, Headache, Muscle or body aches, Fatigue or tiredness

Adult check-in
2020-12-20
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness

Adult check-in
2020-12-21
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Muscle or body aches, Fatigue or tiredness

Adult check-in
2020-12-23
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2020-12-25
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-01-01
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-01-08
Dose 2 — Pfizer-BioNTech
2021-01-08
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-01-15
Survey response — day 7, dose 2
MedDRA: Chills, Headache, Malaise, Myalgia, Pyrexia — Feeling: Good · Site: Pain

Free text: I felt very sick after second vaccine (fever, chills, myalgias, headache) but all better now a week later.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-09
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2021-09-20
Dose 3 — Pfizer-BioNTech
2021-09-29
Health check-in — day 7, dose 3
Feeling: Good · None

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2020-12-18	Pfizer-BioNTech
2	2021-01-08	Pfizer-BioNTech
3	2021-09-20	Pfizer-BioNTech	No

Free text

Release 2 — day 7, dose 2

2021-01-15

Systemic reaction (other): I felt very sick after second vaccine (fever, chills, myalgias, headache) but all better now a week later.

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
SRO	Chills	✓	✓	✓
SRO	Headache	✓	✓	✓
SRO	Malaise	✓	✓	✓
SRO	Myalgia	✓	✓	✓
SRO	Pyrexia	✓	✓	✓

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