WQ4-22313-76698 · OpenVSafe

Timeline

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

2020-12-22
Dose 1 — Pfizer-BioNTech
2020-12-27
Registered in v-safe
2020-12-27
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to do your normal daily activities

Adult check-in
2020-12-27
Report sent to call center — days 1–6 daily, dose 1
Be unable to do your normal daily activities

1 call case(s)
2020-12-30
Survey response — day 7, dose 1
MedDRA: Muscle twitching — Feeling: Good · Site: Pain

Free text: Muscle Twitching

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2020-12-30
Call 3 — Left Voicemail
2021-01-07
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-01-12
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-01-13
Dose 2 — Pfizer-BioNTech
2021-01-14
Call 1 — Could Not Reach Participant
2021-01-18
Call 2 — Could Not Reach Participant
2021-01-19
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Pain · None

Adult check-in
2021-01-29
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-02-26
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-10-18
Dose 3 — Pfizer-BioNTech
2022-12-06
Dose 4 — Pfizer-BioNTech

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2020-12-22	Pfizer-BioNTech
2	2021-01-13	Pfizer-BioNTech
3	2021-10-18	Pfizer-BioNTech	No
4	2022-12-06	Pfizer-BioNTech	No

Call center

Reported	Outcome	VAERS-related outcome
2020-12-27	Unsuccessful

Free text

Release 1 — day 7, dose 1

2020-12-30

Systemic reaction (other): Muscle Twitching

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	Muscle twitching	✓	✓	✓

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