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Report #2878636

Received Dec 18, 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
Male
Age
Age unknown
State
—
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
COVID19COVID19 (COVID19 (PFIZER-BIONTECH))PFIZER\BIONTECH1——

Symptoms (5)

Bifascicular blockCOVID-19Cardiac disorderDrug ineffectiveRespiratory disorder

Symptom narrative

Covid; Covid; breathing problems; developed a cardiac condition; progression to a bifascicular block; This is a spontaneous report received from a Consumer or other non HCP from medical information team. A 79-year-old male patient received BNT162b2 omicron (kp.2) (COMIRNATY (2024-2025 FORMULA)), as dose 1, single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history included: "left anterior ventricular Fascicular" (unspecified if ongoing). The patient's concomitant medications were not reported. Vaccination history included: Covid-19 vaccine, for COVID-19 Immunization; Fluvaccin, for Immunization. The following information was reported: BIFASCICULAR BLOCK (medically significant) with onset 2024, outcome "unknown", described as "progression to a bifascicular block"; DRUG INEFFECTIVE (medically significant), COVID-19 (medically significant), outcome "unknown" and all described as "Covid"; RESPIRATORY DISORDER (non-serious), outcome "unknown", described as "breathing problems"; CARDIAC DISORDER (non-serious), outcome "unknown", described as "developed a cardiac condition". No follow-up attempts are possible. Batch/lot number is not provided, and it cannot be obtained.

Medical history

Medical History/Concurrent Conditions: Left anterior fascicular block