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Timeline

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

2021-03-19
Dose 1 — Pfizer-BioNTech
2021-04-07
Dose 2 — Pfizer-BioNTech
2021-04-21
Registered in v-safe
2021-04-21
Survey response — day 14, dose 2
MedDRA: Lymphadenopathy, Swelling — Feeling: Good

Free text: I experienced significant swelling in my left armpit 3 days after my second dose. I received the vaccine shot in my left arm. It appeared to be swollen a lymph node. The swelling moved into my upper left chest. The swelling went down after 5 days.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-03
Survey response — day 21, dose 2
MedDRA: Chest pain, Swelling — Feeling: Fair

Free text: I am experience some slight pain in my left chest area around my heart. It is slight but it started after my second dose of the covid vaccine. There is still some minor swelling of my left upper chest.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-06
Survey response — day 28, dose 2
MedDRA: Oedema peripheral, Swelling — Feeling: Fair

Free text: The swelling of my left armpit and chest has subsided but is still noticeable. It is not painful but it does cause me to worry.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-12
Survey response — day 35, dose 2
MedDRA: Palpitations — Feeling: Fair

Free text: I can feel my heart beating more now than before my vaccination. Especially when I try to sleep.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-21
Survey response — day 42, dose 2
MedDRA: Heart rate increased, Heart rate irregular — Feeling: Fair

Free text: My heart beat has been faster and heavier sometimes in the last few weeks. Especially when I am going to bed. It started about 3 weeks after getting the vaccine.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-07
Survey response — 3 months, dose 2
MedDRA: Heart rate increased — Feeling: Poor · Get care from a doctor or other healthcare professional · Outpatient clinic or urgent care clinic visit

Free text: Heart thumping. Heavy beating of my heart. Going for stress test and cardio echo test next week.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-07
Report sent to call center — 3 months, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-07-12
Call 1 — Left Voicemail
2021-08-25
Call successful
Reported to VAERS voluntarily prior to GDIT contact
2022-04-09
Health check-in — 12 months, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-19	Pfizer-BioNTech
2	2021-04-07	Pfizer-BioNTech

Call center

1 call center case

1 successful

VAERS report filed, before or during a call: 1

See the call center timeline

Free text

Release 7 — day 14, dose 2

2021-04-21

Symptoms: I experienced significant swelling in my left armpit 3 days after my second dose. I received the vaccine shot in my left arm. It appeared to be swollen a lymph node. The swelling moved into my upper left chest. The swelling went down after 5 days.

Release 8 — day 21, dose 2

2021-05-03

Symptoms: I am experience some slight pain in my left chest area around my heart. It is slight but it started after my second dose of the covid vaccine. There is still some minor swelling of my left upper chest.

Release 8 — day 28, dose 2

2021-05-06

Symptoms: The swelling of my left armpit and chest has subsided but is still noticeable. It is not painful but it does cause me to worry.

Release 8 — day 35, dose 2

2021-05-12

Symptoms: I can feel my heart beating more now than before my vaccination. Especially when I try to sleep.

Release 8 — day 42, dose 2

2021-05-21

Symptoms: My heart beat has been faster and heavier sometimes in the last few weeks. Especially when I am going to bed. It started about 3 weeks after getting the vaccine.

Release 9 — 3 months, dose 2

2021-07-07

Symptoms: Heart thumping. Heavy beating of my heart. Going for stress test and cardio echo test next 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	Chest pain	✓	✓	✓
SD	Heart rate increased	✓	✓	✓
SD	Heart rate irregular	✓	✓	✓
SD	Lymphadenopathy	✓	✓	✓
SD	Oedema peripheral	·	·	✓
SD	Palpitations	✓	✓	✓
SD	Swelling	✓	✓	✓

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