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Report #2893939

Received Apr 23, 2026

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
Female
Age
Age unknown
State
—
Recovered
Unknown
Vaccinated
Jul 1, 2025
Onset
Apr 20, 2026
Days to onset
293
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
PNC20PNEUMO (PREVNAR20)PFIZER\WYETHUNK——

Symptoms (3)

Drug ineffectiveMalaisePneumonia

Symptom narrative

pneumonia; pneumonia; This is a spontaneous report received from a Consumer (patient) from License Party. Other Case identifier(s): 02946586 (Merck). A 67-year-old female patient received pneumococcal 20-valent conjugate vaccine (diphtheria CRM197 protein) (PREVNAR 20), in Jul2025 as dose number unknown, single (Batch/Lot number: unknown). The patient's relevant medical history and concomitant medications were not reported. The following information was reported: DRUG INEFFECTIVE (medically significant), PNEUMONIA (medically significant) all with onset 20Apr2026, outcome "unknown" and all described as "pneumonia". Clinical course: Patient stated that she received PREVNAR 20 in Jul2025. The caller (patient) stated that she has been feeling sick for a week and that she was diagnosed with pneumonia yesterday. No further information was provided. Batch/lot number is not provided, and it cannot be obtained. Prevnar 20 is under agreement with MERCK.