NPX-25411-43465

2 vaccinations 8 coded responses 23 check-ins 8 free-text entries 0 call cases

Sex: Female
Age at first dose: 26-30
ZIP prefix: 212 / MD
Registered: 2021-04-10

Relationship: Self
Race: White
Ethnicity: Not Hispanic or Latino

Timeline Vaccinations Free text MedDRA terms

Timeline

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

2021-04-10
Registered in v-safe
2021-04-10
Dose 1 — Pfizer-BioNTech
2021-04-10
Survey response — day 0, dose 1
MedDRA: Headache, Pre-existing disease — Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness

Free text: I also have migraines so the headache may have been unrelated.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-11
Health check-in — days 1–6 daily, dose 1
Feeling: Fair · Site: Pain · Muscle or body aches, Fatigue or tiredness

Adult check-in
2021-04-13
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Headache

Adult check-in
2021-04-14
Health check-in — days 1–6 daily, dose 1
Feeling: Good · Muscle or body aches

Adult check-in
2021-04-15
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-16
Health check-in — days 1–6 daily, dose 1
Feeling: Good · None

Adult check-in
2021-04-17
Survey response — day 7, dose 1
MedDRA: Abdominal pain upper — Feeling: Good · Abdominal pain

Free text: Stomachache

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-26
Health check-in — day 14, dose 1
Feeling: Fair

Adult check-in
2021-05-01
Dose 2 — Pfizer-BioNTech
2021-05-01
Health check-in — day 0, dose 2
Feeling: Fair · Site: Pain · Headache, Fatigue or tiredness

Adult check-in
2021-05-02
Health check-in — days 1–6 daily, dose 2
Feeling: Poor · Site: Pain · Headache, Joint pains, Muscle or body aches, Fatigue or tiredness · Be unable to do your normal daily activities

Adult check-in
2021-05-03
Survey response — days 1–6 daily, dose 2
MedDRA: Injection site pain — Feeling: Fair · Site: Pain · Muscle or body aches

Free text: Only muscle pain is in the upper arm near the injection site

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-04
Health check-in — days 1–6 daily, dose 2
Feeling: Good · Fatigue or tiredness

Adult check-in
2021-05-05
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-05-06
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache

Adult check-in
2021-05-07
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache

Adult check-in
2021-05-08
Health check-in — day 7, dose 2
Feeling: Fair · None

Adult check-in
2021-05-15
Survey response — day 14, dose 2
MedDRA: Back pain, Myalgia, Pain — Feeling: Good

Free text: Lots of back pain but that could be my normal poor posture tho it seems worse after the 36 hours of severe aches and muscle pain after the vaccine.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-22
Survey response — day 21, dose 2
MedDRA: Back pain, Myalgia, Pre-existing disease — Feeling: Fair · Be unable to do your normal daily activities

Free text: After my 2nd shot i had severe muscle pain for about 36 hours and lately have been having intense back pain since. It's probably a pre-existing issue but it seems much worse lately.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-05-29
Survey response — day 28, dose 2
MedDRA: Back pain, Pre-existing disease, Sciatica — Feeling: Fair · Be unable to do your normal daily activities

Free text: Very sore back that is likely sciatica but noticed the symptoms being much worse after the 2nd shot.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-06-05
Health check-in — day 35, dose 2
Feeling: Fair

Adult check-in
2021-06-12
Survey response — day 42, dose 2
MedDRA: Headache — Feeling: Fair · Be unable to do your normal daily activities

Free text: Headaches are more common, but that's bc I've recently stopped a lot of medications in preparation to try to get pregnant.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-08-05
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in
2022-05-01
Survey response — 12 months, dose 2
MedDRA: COVID-19, Pregnancy — Feeling: Poor · Be unable to work or attend school, Be unable to do your normal daily activities

Free text: I have COVID and am in my 2nd trimester of pregnancy.

MedDRA releases: 2024-11 · check-in free text available

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-04-10	Pfizer-BioNTech
2	2021-05-01	Pfizer-BioNTech

Free text

Release 7 — day 0, dose 1

2021-04-10

Systemic reaction (other): I also have migraines so the headache may have been unrelated.

Release 7 — day 7, dose 1

2021-04-17

Systemic reaction (other): Stomachache

Release 8 — days 1–6 daily, dose 2

2021-05-03

Systemic reaction (other): Only muscle pain is in the upper arm near the injection site

Release 8 — day 14, dose 2

2021-05-15

Symptoms: Lots of back pain but that could be my normal poor posture tho it seems worse after the 36 hours of severe aches and muscle pain after the vaccine.

Release 8 — day 21, dose 2

2021-05-22

Symptoms: After my 2nd shot i had severe muscle pain for about 36 hours and lately have been having intense back pain since. It's probably a pre-existing issue but it seems much worse lately.

Release 8 — day 28, dose 2

2021-05-29

Symptoms: Very sore back that is likely sciatica but noticed the symptoms being much worse after the 2nd shot.

Release 9 — day 42, dose 2

2021-06-12

Symptoms: Headaches are more common, but that's bc I've recently stopped a lot of medications in preparation to try to get pregnant.

Release 11 — 12 months, dose 2

2022-05-01

Symptoms: I have COVID and am in my 2nd trimester of 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	Back pain	✓	✓	✓
SD	COVID-19	·	·	✓
SD	Headache	✓	✓	✓
SD	Myalgia	✓	✓	✓
SD	Pain	✓	✓	✓
SD	Pre-existing disease	✓	✓	✓
SD	Pregnancy	·	·	✓
SD	Sciatica	✓	✓	✓
SRO	Abdominal pain upper	✓	✓	✓
SRO	Headache	✓	✓	✓
SRO	Injection site pain	✓	✓	✓
SRO	Pre-existing disease	✓	✓	✓

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