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Report #2880113

Received Dec 31, 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
Unknown
Vaccinated
Jul 1, 2021
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (PFIZER-BIONTECH))PFIZER\BIONTECH3——

Symptoms (2)

Condition aggravatedMastocytosis

Symptom narrative

COVID-19 vaccine caused cutaneous mastocytosis, with significant progress after the booster in JUL2021; COVID-19 vaccine caused cutaneous mastocytosis, with significant progress after the booster in JUL2021; 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 Jul2021 as dose 3 (booster), 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; Bnt162b2 (DOSE 2, caused cutaneous mastocytosis within 1 week of its administration after the second vaccination back in JAN2021), administration date: Jan2021, for covid-19 immunization, reaction(s): "Mastocytosis". The following information was reported: MASTOCYTOSIS (non-serious), CONDITION AGGRAVATED (non-serious) all with onset 2021, outcome "unknown" and all described as "COVID-19 vaccine caused cutaneous mastocytosis, with significant progress after the booster in JUL2021". 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.