4W2-10733-11161 · OpenVSafe

Timeline

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

2020-12-17
Dose 1 — Pfizer-BioNTech
2021-01-04
Dose 2 — Pfizer-BioNTech
2021-01-05
Registered in v-safe
2021-01-05
Health check-in — day 14, dose 1
Feeling: Fair

Adult check-in
2021-01-05
Survey response — days 1–6 daily, dose 2
MedDRA: Lymphadenopathy — Feeling: Fair · Site: Pain · Headache, Muscle or body aches, Fatigue or tiredness

Free text: Lymph node swelling. 2-3 cm axillary lymph node swelling on vaccinated side

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-06
Survey response — days 1–6 daily, dose 2
MedDRA: Lymph node pain, Lymphadenopathy — Feeling: Good

Free text: Persistent swollen axillary lymph node on the left side, but less painful today. Still quite enlarged

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-07
Health check-in — days 1–6 daily, dose 2
Feeling: Fair · Headache, Muscle or body aches

Adult check-in
2021-01-10
Survey response — days 1–6 daily, dose 2
MedDRA: Lymphadenopathy — Feeling: Fair · Headache, Fatigue or tiredness

Free text: Lymph node swelling of axilla injection arm

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-01-11
Health check-in — day 7, dose 2
Feeling: Fair · Headache

Adult check-in
2021-01-21
Health check-in — day 14, dose 2
Feeling: Good

Adult check-in
2021-01-26
Health check-in — day 21, dose 2
Feeling: Good

Adult check-in
2021-02-10
Health check-in — day 35, dose 2
Feeling: Good

Adult check-in
2021-02-15
Health check-in — day 42, dose 2
Feeling: Good

Adult check-in
2021-04-05
Survey response — 3 months, dose 2
MedDRA: Lymph node pain, Lymphadenopathy, Myalgia — Feeling: Good · Get care from a doctor or other healthcare professional · Telehealth, virtual health, or email health consultation

Free text: Still have swollen axillary lymph node on side of vaccine. Had mammogram and ultrasound. Mildly enlarged lymph nodes. Still mildly tender. Will reimage in 3 months if still enlarged. Developed acutely following 2nd vaccine

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-05
Report sent to call center — 3 months, dose 2
Get care from a doctor or other healthcare professional

1 call case(s)
2021-06-17
Call 1 — Could Not Reach Participant
2021-06-22
Call 2 — Left Voicemail

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2020-12-17	Pfizer-BioNTech
2	2021-01-04	Pfizer-BioNTech

Call center

1 call center case

1 unsuccessful

See the call center timeline

Free text

Release 1 — days 1–6 daily, dose 2

2021-01-05

Systemic reaction (other): Lymph node swelling. 2-3 cm axillary lymph node swelling on vaccinated side

2021-01-06

Systemic reaction (other): Persistent swollen axillary lymph node on the left side, but less painful today. Still quite enlarged

2021-01-10

Systemic reaction (other): Lymph node swelling of axilla injection arm

Release 6 — 3 months, dose 2

2021-04-05

Symptoms: Still have swollen axillary lymph node on side of vaccine. Had mammogram and ultrasound. Mildly enlarged lymph nodes. Still mildly tender. Will reimage in 3 months if still enlarged. Developed acutely following 2nd vaccine

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	Lymph node pain	✓	✓	✓
SD	Lymphadenopathy	✓	✓	✓
SD	Myalgia	✓	✓	✓
SRO	Lymph node pain	✓	✓	✓
SRO	Lymphadenopathy	✓	✓	✓

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