TNT-19203-66937 · OpenVSafe

Timeline

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

2021-03-19
Registered in v-safe
2021-03-19
Dose 1 — Pfizer-BioNTech
2021-03-19
Health check-in — day 0, dose 1
Feeling: Good · None

Adult check-in
2021-03-20
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Diarrhea, Abdominal pain

Adult check-in
2021-03-24
Survey response — days 1–6 daily, dose 1
MedDRA: Premature labour — Feeling: Fair · Muscle or body aches, Fatigue or tiredness · Be unable to work, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit, Hospitalization

Free text: I went into preterm labor at 33 weeks 2 days after receiving my first dose of the vaccine

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-24
Report sent to call center — days 1–6 daily, dose 1
Be unable to work · Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-03-28
Survey response — day 7, dose 1
MedDRA: Premature labour — Feeling: Good · Be unable to work, Be unable to do your normal daily activities, Get care from a doctor or other healthcare professional · Emergency room or emergency department visit, Hospitalization

Free text: Preterm labor on 3/22 after receiving vaccine on 3/19

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-03-28
Report sent to call center — day 7, dose 1
Be unable to work · Be unable to do your normal daily activities · Get care from a doctor or other healthcare professional

1 call case(s)
2021-04-09
Call 1 — Left Voicemail
2021-04-12
Call 2 — Requested Callback
2021-04-16
Call successful
Participant prefers to complete VAERS report online

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-19	Pfizer-BioNTech

Call center

2 call center cases

2 successful

See the call center timeline

Free text

Release 6 — days 1–6 daily, dose 1

2021-03-24

Systemic reaction (other): I went into preterm labor at 33 weeks 2 days after receiving my first dose of the vaccine

Release 6 — day 7, dose 1

2021-03-28

Systemic reaction (other): Preterm labor on 3/22 after receiving vaccine on 3/19

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	Premature labour	✓	✓	✓

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