KZW-10778-05499 · OpenVSafe

Timeline

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

2021-03-23
Dose 1 — Pfizer-BioNTech
2021-04-15
Dose 2 — Pfizer-BioNTech
2021-08-10
Registered in v-safe
2021-10-16
Survey response — 6 months, dose 2
MedDRA: Menstruation irregular, Pregnancy — Feeling: Fair · Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation, Emergency room or emergency department visit

Free text: irregular period and Pregnancy

MedDRA releases: 2024-11 · check-in free text available
2021-10-16
Report sent to call center — 6 months, dose 2
Get care from a doctor or other healthcare professional

Telehealth, virtual health, or email health consultation · Emergency room or emergency department visit · 1 call case(s)
2021-10-19
Call successful
Does not wish to fill out VAERS report

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-23	Pfizer-BioNTech	No
2	2021-04-15	Pfizer-BioNTech	No

Call center

1 call center case

1 successful

See the call center timeline

Free text

Release 10 — 6 months, dose 2

2021-10-16

Symptoms: irregular period and Pregnancy

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
SD	Menstruation irregular	·	·	✓
SD	Pregnancy	·	·	✓

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