YCH-31616-01828 · OpenVSafe

Timeline

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

2021-08-06
Dose 1 — Pfizer-BioNTech
2021-08-27
Dose 2 — Pfizer-BioNTech
2021-08-30
Registered in v-safe
2021-08-30
Survey response — days 1–6 daily, dose 2
MedDRA: Dizziness, Emergency care, Heart rate increased, Immediate post-injection reaction, Immunisation reaction, Palpitations — Feeling: Fair · Site: Swelling, Itching · Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Systemic reaction (other): I had 2nd Pfizer dose Friday 8/27/21 at 10.00 am. Exactly 24 hours later, I felt a heart palpitation and my pulse spiked within seconds to 140 bp. At same time, I felt lightheaded. After 1 hour, pulse still 130s went to ER. Said adverse reaction. · Healthcare visit (other): 24 hours after 2nd dose, had a palpitation immediately followed by rapid increase in pulse 140. After 1 hour, still high, went to ER.

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-08-30
Report sent to call center — days 1–6 daily, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-08-31
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Site: Swelling, Itching · Fatigue or tiredness

Adult check-in
2021-09-01
Survey response — days 1–6 daily, dose 2
MedDRA: Palpitations, Pre-existing disease — Feeling: Fair

Free text: Heart palpitations, but difficult to separate from periodic palpitations due to perimenooause.

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-09-02
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · None

Adult check-in
2021-09-03
Health check-in — day 7, dose 2
Feeling: Fair · None

Adult check-in
2021-09-10
Health check-in — day 14, dose 2
Feeling: Fair

Adult check-in
2021-09-17
Health check-in — day 21, dose 2
Feeling: Poor

Adult check-in
2021-09-24
Survey response — day 28, dose 2
MedDRA: Arthralgia, Headache, Musculoskeletal stiffness, Neck pain — Feeling: Poor · Be unable to do your normal daily activities

Free text: Headache right side of head above ear. neck/shoulder stiffness/pain, all past 5 days.

MedDRA releases: 2024-11 · check-in free text available
2021-10-01
Health check-in — day 35, dose 2
Feeling: Fair

Adult check-in
2021-10-06
Call 1 — Left Voicemail
2021-10-06
Call successful
Participant prefers to complete VAERS report online
2021-10-08
Health check-in — day 42, dose 2
Feeling: Poor

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-08-06	Pfizer-BioNTech	No
2	2021-08-27	Pfizer-BioNTech	No

Call center

Reported	Outcome	VAERS-related outcome
2021-08-30	Successful 2021-10-06	Participant prefers to complete VAERS report online

Free text

Release 9 — days 1–6 daily, dose 2

2021-08-30

Systemic reaction (other): I had 2nd Pfizer dose Friday 8/27/21 at 10.00 am. Exactly 24 hours later, I felt a heart palpitation and my pulse spiked within seconds to 140 bp. At same time, I felt lightheaded. After 1 hour, pulse still 130s went to ER. Said adverse reaction.

Healthcare visit (other): 24 hours after 2nd dose, had a palpitation immediately followed by rapid increase in pulse 140. After 1 hour, still high, went to ER.

2021-09-01

Systemic reaction (other): Heart palpitations, but difficult to separate from periodic palpitations due to perimenooause.

Release 9 — day 28, dose 2

2021-09-24

Symptoms: Headache right side of head above ear. neck/shoulder stiffness/pain, all past 5 days.

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
HCVO	Emergency care	✓	·	✓
HCVO	Heart rate increased	✓	·	✓
HCVO	Immediate post-injection reaction	✓	·	✓
HCVO	Palpitations	✓	·	✓
SD	Arthralgia	·	·	✓
SD	Headache	·	·	✓
SD	Musculoskeletal stiffness	·	·	✓
SD	Neck pain	·	·	✓
SRO	Dizziness	✓	·	✓
SRO	Emergency care	✓	·	✓
SRO	Heart rate increased	✓	·	✓
SRO	Immunisation reaction	✓	·	✓
SRO	Palpitations	✓	·	✓
SRO	Pre-existing disease	✓	·	✓

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