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Timeline

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

2021-03-18
Dose 1 — Pfizer-BioNTech
2021-03-23
Registered in v-safe
2021-03-23
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-24
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Headache

Adult check-in
2021-03-25
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-02
Survey response — day 14, dose 1
MedDRA: Cough, Hypopnoea, Immunisation reaction, Injection site nodule, Rash erythematous — Feeling: Good

Free text: I received my 1st dose of the Pfizer vaccine on 3/18/2021. On 3/26/2021, I experienced a knot at the injection site on my arm, a red rash, slight cough and a brief moment of rapid/shallow breathing known as COVID arm. It was improved by 3/30/2021.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-08
Dose 2 — Pfizer-BioNTech
2021-04-09
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain · Chills, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to work, Be unable to do your normal daily activities

Adult check-in
2021-04-11
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Itching · Fatigue or tiredness, Diarrhea

Adult check-in
2021-04-13
Survey response — days 1–6 daily, dose 2
MedDRA: Chest discomfort — Feeling: Fair · Muscle or body aches, Fatigue or tiredness

Free text: Slight chest congestion

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-14
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Fatigue or tiredness

Adult check-in
2021-04-15
Survey response — day 7, dose 2
MedDRA: Cough, Respiratory tract congestion — Feeling: Fair · Chills, Headache, Muscle or body aches, Fatigue or tiredness, Nausea

Free text: Chest congestion and slight cough

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-22
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-29
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-06
Survey response — day 28, dose 2
MedDRA: Fatigue, Impaired work ability, Pain, Respiratory tract congestion, SARS-CoV-2 test negative — Feeling: Good · Be unable to work

Free text: I have experienced some fatigue, body aches and chest congestion (lasted 5/1-5/4/2021). It is better now, though. I took a COVID-19 test on 5/4/2021 to be on the safe side and found out today (5/6/2021) it was negative. I was unable to work on 5/3.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-13
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-05-20
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-07-08
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-10-07
Survey response — 6 months, dose 2
MedDRA: Fatigue, Pain, Respiratory tract congestion, Viral infection — Feeling: Good · Be unable to work or attend school, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation

Free text: I had a viral infection that lasted about 10 days, but it was not COVID. I was achy, tired and had head/chest congestion.

MedDRA releases: 2024-11 · check-in free text available
2021-10-07
Report sent to call center — 6 months, dose 2
Be unable to work or attend school · Be unable to do your normal daily activities · Get care from a doctor or other healthcare pr

Telehealth, virtual health, or email health consultation · 1 call case(s)
2021-12-06
Call successful
Participant prefers to complete VAERS report online

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-18	Pfizer-BioNTech
2	2021-04-08	Pfizer-BioNTech

Call center

1 call center case

1 successful

See the call center timeline

Free text

Release 6 — day 14, dose 1

2021-04-02

Symptoms: I received my 1st dose of the Pfizer vaccine on 3/18/2021. On 3/26/2021, I experienced a knot at the injection site on my arm, a red rash, slight cough and a brief moment of rapid/shallow breathing known as COVID arm. It was improved by 3/30/2021.

Release 7 — days 1–6 daily, dose 2

2021-04-13

Systemic reaction (other): Slight chest congestion

Release 7 — day 7, dose 2

2021-04-15

Systemic reaction (other): Chest congestion and slight cough

Release 8 — day 28, dose 2

2021-05-06

Symptoms: I have experienced some fatigue, body aches and chest congestion (lasted 5/1-5/4/2021). It is better now, though. I took a COVID-19 test on 5/4/2021 to be on the safe side and found out today (5/6/2021) it was negative. I was unable to work on 5/3. cut off by CDC

Release 10 — 6 months, dose 2

2021-10-07

Symptoms: I had a viral infection that lasted about 10 days, but it was not COVID. I was achy, tired and had head/chest congestion.

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	Cough	✓	✓	✓
SD	Fatigue	✓	✓	✓
SD	Hypopnoea	✓	✓	✓
SD	Immunisation reaction	✓	✓	✓
SD	Impaired work ability	✓	✓	✓
SD	Injection site nodule	✓	✓	✓
SD	Pain	✓	✓	✓
SD	Rash erythematous	✓	✓	✓
SD	Respiratory tract congestion	✓	✓	✓
SD	SARS-CoV-2 test negative	✓	✓	✓
SD	Viral infection	·	·	✓
SRO	Chest discomfort	✓	✓	✓
SRO	Cough	✓	✓	✓
SRO	Respiratory tract congestion	✓	✓	✓

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