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Report #2879567

Received Dec 24, 2025

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Unknown
Age
Age unknown
State
—
Recovered
Not recovered
Vaccinated
Jan 1, 2021
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (PFIZER-BIONTECH))PFIZER\BIONTECH2——

Symptoms (1)

Mastocytosis

Symptom narrative

COVID-19 vaccine caused cutaneous mastocytosis; This is a spontaneous report received from an Other HCP from medical information team. A patient (age and gender not provided) received BNT162b2 (BNT162B2), in Jan2021 as dose 2, single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Bnt162b2 (DOSE 1), for covid-19 immunization. The following information was reported: MASTOCYTOSIS (non-serious) with onset 2021, outcome "not recovered", described as "COVID-19 vaccine caused cutaneous mastocytosis". Additional information: An HCP told him that the COVID-19 vaccine caused cutaneous mastocytosis within 1 week of its administration after the second vaccination back in Jan2021, with significant progress after the booster in Jul2021. No follow-up attempts are possible. Batch/lot number is not provided, and it cannot be obtained.