39S-26773-99599 · OpenVSafe

Timeline

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

2021-03-22
Dose 1 — Pfizer-BioNTech
2021-04-12
Registered in v-safe
2021-04-12
Dose 2 — Pfizer-BioNTech
2021-04-12
Health check-in — day 0, dose 2
Feeling: Good · Site: Pain · None

Adult check-in
2021-04-13
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Pain · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-04-14
Survey response — days 1–6 daily, dose 2
MedDRA: Adverse reaction, Self-medication — Feeling: Good · Site: Pain

Free text: The night of the 12th (2nd dose) I took Tylenol Night and then Tylenol Day . I think it helped me tolerate the symptoms on Tuesday. I took 2 more Tylenol night before I went to bed Tuesday night. I have no needed any today at all and feel fine.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-15
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Itching · None

Adult check-in
2021-04-16
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-27
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-03
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-10
Survey response — day 28, dose 2
MedDRA: Vaccination site discolouration — Feeling: Good

Free text: First dose vaccination site looks slightly black and blue now, but not before.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-19
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-05-24
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-07-12
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-13
Survey response — 6 months, dose 2
MedDRA: Arthropod bite, Histamine intolerance, Pruritus — Feeling: Good

Free text: I seem to have a hypersensitivity to histamines. I have flea bites from my cat, but I wonder if the itching is more than it would be usually.

MedDRA releases: 2024-11 · check-in free text available
2022-04-14
Health check-in — 12 months, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-22	Pfizer-BioNTech
2	2021-04-12	Pfizer-BioNTech

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-14

Systemic reaction (other): The night of the 12th (2nd dose) I took Tylenol Night and then Tylenol Day . I think it helped me tolerate the symptoms on Tuesday. I took 2 more Tylenol night before I went to bed Tuesday night. I have no needed any today at all and feel fine.

Release 8 — day 28, dose 2

2021-05-10

Symptoms: First dose vaccination site looks slightly black and blue now, but not before.

Release 10 — 6 months, dose 2

2021-10-13

Symptoms: I seem to have a hypersensitivity to histamines. I have flea bites from my cat, but I wonder if the itching is more than it would be usually.

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	Arthropod bite	·	·	✓
SD	Histamine intolerance	·	·	✓
SD	Pruritus	·	·	✓
SD	Vaccination site discolouration	✓	✓	✓
SRO	Adverse reaction	✓	✓	✓
SRO	Self-medication	✓	✓	✓

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