65T-83134-09853

4 vaccinations 2 coded responses 50 check-ins 2 free-text entries 2 call cases

Sex: Female
Age at first dose: 66+
ZIP prefix: 018 / MA
Registered: 2021-03-01

Relationship: Self
Race: White
Ethnicity: Not Hispanic or Latino

Possible VAERS report

VAERS ID	Confidence	Score	Runner-up	Shared symptoms	Dose	State	VAERS vaccinated / onset / received	Call case
1920809 (opens in a new window)	high	10 / 11	3	1 of 3 VAERS symptoms	same dose (3)	MA matches	2021-11-10 / 2021-11-10 / 2021-12-03 received the same day as the last call	case 1197935

From the VAERS matching of call center cases (loader/vaers_match_*). Only the best match is shown, and only if it scores 8 or more out of 11. The score adds up timing (VAERS received soon after the call center contact), dose and shared symptoms; state only breaks ties. Confidence is high when the score is 8+ and at least 3 points ahead of the runner-up, medium when 5+ and 2 ahead, otherwise low. A match is a likely link, not a confirmed one.

Timeline

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

2021-03-01
Registered in v-safe
2021-03-01
Dose 1 — Moderna
2021-03-01
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-03-02
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain, Itching · None

Adult check-in
2021-03-03
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Site: Pain · None

Adult check-in
2021-03-04
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-05
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Fever · Diarrhea, Abdominal pain

Adult check-in
2021-03-06
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-07
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-03-08
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-03-15
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-03-22
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-03-29
Dose 2 — Moderna
2021-03-29
Health check-in — day 0, dose 2
Feeling: Good · None

Adult check-in
2021-03-30
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain, Swelling, Itching · Fever · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness, Nausea · Be unable to work, Be unable to do your normal daily activities

Adult check-in
2021-03-31
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain · Chills, Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-04-01
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Site: Itching · None

Adult check-in
2021-04-02
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-03
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

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

Adult check-in
2021-04-05
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-04-12
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-04-19
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-04-26
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-05-03
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-05-10
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-06-28
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2021-09-27
Health check-in — 6 months, dose 2
Feeling: Good

Adult check-in
2021-11-10
Dose 3 — Moderna
2021-11-11
Health check-in — days 1–6 daily, dose 3
Feeling: Good · Site: Pain · Fatigue or tiredness

Adult check-in
2021-11-12
Health check-in — days 1–6 daily, dose 3
Feeling: Good · Site: Pain · Muscle or body aches

Adult check-in
2021-11-13
Health check-in — days 1–6 daily, dose 3
Feeling: Good · Site: Itching · None

Adult check-in
2021-11-14
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-11-15
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-11-16
Health check-in — days 1–6 daily, dose 3
Feeling: Good · None

Adult check-in
2021-11-17
Health check-in — day 7, dose 3
Feeling: Good · None

Adult check-in
2021-11-24
Health check-in — day 14, dose 3
Feeling: Good

Adult check-in
2021-12-01
Survey response — day 21, dose 3
MedDRA: Heart rate increased, Office visit — Feeling: Good · Get care from a doctor or other healthcare professional

Free text: Symptoms: I was wearing a Zio heart monitor the week that I got my booster shot. I learned this week that shortly after my shot my heart rate went up to 225 for several beats. 4 days later it went to 140. I have made my doctor aware. · Healthcare visit (other): Cardio dr. Is doing further test

MedDRA releases: 2024-11 · check-in free text available
2021-12-01
Report sent to call center — day 21, dose 3
Get care from a doctor or other healthcare professional

1 call case(s)
2021-12-02
Call 1 — Left Voicemail
2021-12-03
Call successful
Completed over the phone
2021-12-08
Health check-in — day 28, dose 3
Feeling: Good

Adult check-in
2021-12-15
Health check-in — day 35, dose 3
Feeling: Good

Adult check-in
2021-12-22
Health check-in — day 42, dose 3
Feeling: Fair

Adult check-in
2022-02-09
Health check-in — 3 months, dose 3
Feeling: Good

Adult check-in
2022-05-25
Dose 4 — Pfizer-BioNTech
2022-05-26
Health check-in — days 1–6 daily, dose 4
Feeling: Good · Site: Pain · Headache, Fatigue or tiredness

Adult check-in
2022-05-27
Health check-in — days 1–6 daily, dose 4
Feeling: Fair · Site: Pain · Muscle or body aches, Fatigue or tiredness

Adult check-in
2022-05-28
Health check-in — days 1–6 daily, dose 4
Feeling: Good · Fatigue or tiredness

Adult check-in
2022-05-30
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-05-31
Health check-in — days 1–6 daily, dose 4
Feeling: Good · None

Adult check-in
2022-06-01
Health check-in — day 7, dose 4
Feeling: Good · None

Adult check-in
2022-06-09
Health check-in — day 14, dose 4
Feeling: Good

Adult check-in
2022-06-15
Health check-in — day 21, dose 4
Feeling: Good

Adult check-in
2022-06-22
Health check-in — day 28, dose 4
Feeling: Good

Adult check-in
2022-06-29
Health check-in — day 35, dose 4
Feeling: Good

Adult check-in
2022-07-08
Health check-in — day 42, dose 4
Feeling: Good

Adult check-in
2022-08-26
Survey response — 3 months, dose 4
MedDRA: Emergency care, Heart rate increased, Supraventricular tachycardia — Feeling: Fair · Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: Went to the ER on 08/18/2022 with concerns regarding SVT (Supraventricular Tachycardia) Current medication was not working and had to be switched to lower my rapid heart beat.

MedDRA releases: 2024-11 · check-in free text available
2022-08-26
Report sent to call center — 3 months, dose 4
Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

Emergency room or emergency department visit · 1 call case(s)
2022-08-29
Call 1 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-01	Moderna
2	2021-03-29	Moderna
3	2021-11-10	Moderna	No
4	2022-05-25	Pfizer-BioNTech	No

Call center

2 call center cases

1 successful · 1 unsuccessful

VAERS report filed, before or during a call: 1

See the call center timeline

Free text

Release 10 — day 21, dose 3

2021-12-01

Symptoms: I was wearing a Zio heart monitor the week that I got my booster shot. I learned this week that shortly after my shot my heart rate went up to 225 for several beats. 4 days later it went to 140. I have made my doctor aware.

Healthcare visit (other): Cardio dr. Is doing further test

Release 12 — 3 months, dose 4

2022-08-26

Symptoms: Went to the ER on 08/18/2022 with concerns regarding SVT (Supraventricular Tachycardia) Current medication was not working and had to be switched to lower my rapid heart beat.

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	Office visit	·	·	✓
SD	Emergency care	·	·	✓
SD	Heart rate increased	·	·	✓
SD	Supraventricular tachycardia	·	·	✓

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