S3N-57905-15072 · OpenVSafe

Timeline

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

2021-07-21
Dose 1 — Pfizer-BioNTech
2021-08-11
Dose 2 — Pfizer-BioNTech
2021-08-17
Registered in v-safe
2021-08-17
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-08-18
Survey response — day 7, dose 2
MedDRA: Chills — Feeling: Good

Free text: Felt chills day after vaccination

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-08-27
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-09-01
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-09-08
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-09-15
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-11-11
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2022-02-11
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2022-02-26
Dose 3 — Pfizer-BioNTech

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-07-21	Pfizer-BioNTech	No
2	2021-08-11	Pfizer-BioNTech	No
3	2022-02-26	Pfizer-BioNTech	No

Free text

Release 9 — day 7, dose 2

2021-08-18

Systemic reaction (other): Felt chills day after vaccination

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	✓	·	✓

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