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Timeline

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

2021-01-26
Dose 1 — Pfizer-BioNTech
2021-07-26
Dose 2 — Pfizer-BioNTech
2022-01-18
Dose 3 — Pfizer-BioNTech
2022-04-12
Dose 4 — Pfizer-BioNTech
2022-09-17
Dose 5 — Pfizer-BioNTech
2022-09-18
Registered in v-safe
2022-09-18
Health check-in — days 1–6 daily, dose 5
Feeling: Good · Site: Pain · Headache

Adult check-in
2022-09-20
Health check-in — days 1–6 daily, dose 5
Feeling: Good · Site: Pain · Headache

Adult check-in
2022-09-21
Survey response — days 1–6 daily, dose 5
MedDRA: Taste disorder — Feeling: Good

Free text: A positive, my sense of taste is more consistent where as before, it was intermittent, don't know how long this will last..

MedDRA releases: 2024-11 · check-in free text available
2022-09-22
Health check-in — days 1–6 daily, dose 5
Feeling: Good · Headache

Adult check-in
2022-09-23
Health check-in — days 1–6 daily, dose 5
Feeling: Fair · Headache, Fatigue or tiredness

Adult check-in
2022-09-24
Health check-in — day 7, dose 5
Feeling: Good · Headache

Adult check-in
2022-10-01
Survey response — day 14, dose 5
MedDRA: Headache, Pre-existing disease, Sleep disorder — Feeling: Fair · Be unable to do your normal daily activities

Free text: Very bad headache. Bad, bad. Woke me up from my sleep. Never had a headache that wakes me up during my sleep. I just took a naproxen for the pain.

MedDRA releases: 2024-11 · check-in free text available
2022-10-08
Survey response — day 21, dose 5
MedDRA: Feeling cold, Headache — Feeling: Fair

Free text: Feel cold when it's not cold in the room. Not chills, just feel cold, have to get a light blanket. Small headache now and then throughout the week.

MedDRA releases: 2024-11 · check-in free text available
2022-10-15
Health check-in — day 28, dose 5
Feeling: Good

Adult check-in
2022-10-22
Health check-in — day 35, dose 5
Feeling: Good

Adult check-in
2022-10-29
Health check-in — day 42, dose 5
Feeling: Good

Adult check-in
2022-12-18
Health check-in — 3 months, dose 5
Feeling: Good

Adult check-in
2023-03-18
Health check-in — 6 months, dose 5
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-26	Pfizer-BioNTech	No
2	2021-07-26	Pfizer-BioNTech	No
3	2022-01-18	Pfizer-BioNTech	No
4	2022-04-12	Pfizer-BioNTech	No
5	2022-09-17	Pfizer-BioNTech	No

Free text

Release 12 — days 1–6 daily, dose 5

2022-09-21

Systemic reaction (other): A positive, my sense of taste is more consistent where as before, it was intermittent, don't know how long this will last..

Release 12 — day 14, dose 5

2022-10-01

Symptoms: Very bad headache. Bad, bad. Woke me up from my sleep. Never had a headache that wakes me up during my sleep. I just took a naproxen for the pain.

Release 12 — day 21, dose 5

2022-10-08

Symptoms: Feel cold when it's not cold in the room. Not chills, just feel cold, have to get a light blanket. Small headache now and then throughout the week.

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	Feeling cold	·	·	✓
SD	Headache	·	·	✓
SD	Pre-existing disease	·	·	✓
SD	Sleep disorder	·	·	✓
SRO	Taste disorder	·	·	✓

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