5DL-29642-88896 · OpenVSafe

Timeline

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

2021-03-27
Dose 1 — Moderna
2021-04-02
Registered in v-safe
2021-04-02
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-03
Health check-in — day 7, dose 1
Feeling: Good · None

Adult check-in
2021-04-10
Health check-in — day 14, dose 1
Feeling: Good

Adult check-in
2021-04-17
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in
2021-04-24
Dose 2 — Moderna
2021-05-02
Health check-in — day 7, dose 2
Feeling: Good · None

Adult check-in
2021-05-09
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-05-16
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-05-22
Health check-in — day 28, dose 2
Feeling: Good

Adult check-in
2021-05-29
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-06-06
Survey response — day 42, dose 2
MedDRA: Low carbohydrate diet, Muscle spasms, Muscle tightness — Feeling: Good

Free text: I have been having muscle spasms in my legs at night. Similar to Charlie horses. It tightens the back of my calf and pulls my foot up. I have been on a low carb diet since March 01. I assumed it might be diet related. But thought i would report it

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-26
Survey response — 3 months, dose 2
MedDRA: Muscle rigidity, Muscle spasms, Musculoskeletal stiffness, Self-medication — Feeling: Good

Free text: I get muscle spasms at night, mostly my calves and feet. More stiff and rigid than a charlie horse. Can't pinpoint the cause, tried various supplments. I am eating a regular diet, just can't figure it out. sharing in case others commented.

MedDRA releases: 2021-09,2024-11 · check-in free text available
2021-10-24
Survey response — 6 months, dose 2
MedDRA: Muscle spasms, Office visit — Feeling: Fair · Get care from a doctor or other healthcare professional

Free text: Symptoms: Leg and foot cramps, especially at night and spasms · Healthcare visit (other): Primary care

MedDRA releases: 2024-11 · check-in free text available
2021-10-24
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-10-29
Call successful
Completed over the phone

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-27	Moderna
2	2021-04-24	Moderna

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 8 — day 42, dose 2

2021-06-06

Symptoms: I have been having muscle spasms in my legs at night. Similar to Charlie horses. It tightens the back of my calf and pulls my foot up. I have been on a low carb diet since March 01. I assumed it might be diet related. But thought i would report it

Release 9 — 3 months, dose 2

2021-07-26

Symptoms: I get muscle spasms at night, mostly my calves and feet. More stiff and rigid than a charlie horse. Can't pinpoint the cause, tried various supplments. I am eating a regular diet, just can't figure it out. sharing in case others commented.

Release 10 — 6 months, dose 2

2021-10-24

Symptoms: Leg and foot cramps, especially at night and spasms

Healthcare visit (other): Primary care

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	Low carbohydrate diet	○	✓	○
SD	Muscle rigidity	✓	·	✓
SD	Muscle spasms	✓	✓	✓
SD	Muscle tightness	✓	✓	✓
SD	Musculoskeletal stiffness	✓	·	✓
SD	Self-medication	✓	·	✓

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