ZX8-24261-98289 · OpenVSafe

Timeline

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

2021-01-24
Registered in v-safe
2021-01-24
Dose 1 — Moderna
2021-01-24
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-01-26
Survey response — days 1–6 daily, dose 1
MedDRA: Pregnancy, Premature labour, Uterine hypertonus — Feeling: Fair · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities

Free text: I am 37 weeks and 6 days pregnant. I started having contractions about 5 hours after receiving the vaccine, and the contractions continued for about 24 hours before slowing and stopping (did not lead to birth, midwives checked the baby and the baby is in fine condition.) I don't think it's related to the vaccine but I do feel it's worth reporting.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-26
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)
2021-01-28
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-02-15
Health check-in — day 21, dose 1
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-01-24	Moderna

Call center

Reported	Outcome	VAERS-related outcome
2021-01-26	priority 2/3

Free text

Release 2 — days 1–6 daily, dose 1

2021-01-26

Systemic reaction (other): I am 37 weeks and 6 days pregnant. I started having contractions about 5 hours after receiving the vaccine, and the contractions continued for about 24 hours before slowing and stopping (did not lead to birth, midwives checked the baby and the baby is in fine condition.) I don't think it's related to the vaccine but I do feel it's worth reporting.

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	Pregnancy	✓	✓	✓
SRO	Premature labour	✓	·	✓
SRO	Uterine hypertonus	○	✓	○

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