FXY-91138-73218 · OpenVSafe

Timeline

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

2021-03-16
Registered in v-safe
2021-03-16
Dose 1 — Moderna
2021-03-16
Health check-in — day 0, dose 1
Feeling: Fair · Site: Pain, Redness · Fever · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-03-18
Survey response — days 1–6 daily, dose 1
MedDRA: Muscle tightness — Feeling: Poor · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit

Free text: My lower back muscles tightened up like I threw out back

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-18
Report sent to call center — days 1–6 daily, dose 1
Be unable to work · Get care from a doctor or other healthcare professional

1 call case(s)
2021-03-19
Survey response — days 1–6 daily, dose 1
MedDRA: Muscle tightness — Feeling: Poor · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities

Free text: Lower back muscles are tight like its out

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-19
Report sent to call center — days 1–6 daily, dose 1
Be unable to work · Be unable to do your normal daily activities

1 call case(s)
2021-03-20
Survey response — days 1–6 daily, dose 1
MedDRA: Back pain — Feeling: Poor · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities

Free text: Severe low back pain

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-20
Report sent to call center — days 1–6 daily, dose 1
Be unable to work · Be unable to do your normal daily activities

1 call case(s)
2021-03-21
Health check-in — days 1–6 daily, dose 1
Feeling: Poor · Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to work

Adult check-in
2021-03-21
Report sent to call center — days 1–6 daily, dose 1
Be unable to work

1 call case(s)
2021-03-25
Health check-in — day 7, dose 1
Feeling: Poor · Joint pains, Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-04-01
Health check-in — day 14, dose 1
Feeling: Fair

Adult check-in
2021-04-06
Call 1 — Left Voicemail
2021-04-08
Health check-in — day 21, dose 1
Feeling: Fair

Adult check-in
2021-04-12
Call successful
Participant prefers to complete VAERS report online

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-16	Moderna

Call center

4 call center cases

1 successful · 3 priority 2/3 (triaged and no follow up)

See the call center timeline

Free text

Release 5 — days 1–6 daily, dose 1

2021-03-18

Systemic reaction (other): My lower back muscles tightened up like I threw out back

2021-03-19

Systemic reaction (other): Lower back muscles are tight like its out

Release 6 — days 1–6 daily, dose 1

2021-03-20

Systemic reaction (other): Severe low back pain

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
SRO	Back pain	✓	✓	✓
SRO	Muscle tightness	✓	✓	✓

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