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Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

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Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.

  1. Home
  2. Vaccines
  3. Influenza, Seasonal (Fluad Quadrivalent)
  4. Chronic obstructive pulmonary disease
Influenza, Seasonal (Fluad Quadrivalent)×Chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease Reports for Influenza, Seasonal (Fluad Quadrivalent)

#169 most reported symptom for this vaccine

17
Reports
2
Deaths
16
Hospitalizations
11.76
Mortality Rate
%
94.1
Hosp. Rate
%

Chronic obstructive pulmonary disease and Influenza, Seasonal (Fluad Quadrivalent)

Chronic obstructive pulmonary disease has been reported 17 times in association with Influenza, Seasonal (Fluad Quadrivalent) vaccination in VAERS. This represents 0.4% of all 4,184 reports for this vaccine.

Among these reports, 2 mentioned death (11.76%) and 16 involved hospitalization (94.1%).

Chronic obstructive pulmonary disease is the #169 most frequently reported symptom for Influenza, Seasonal (Fluad Quadrivalent) out of 673 total symptoms.

Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.

What This Means

Seeing 17 reports of Chronic obstructive pulmonary disease after Influenza, Seasonal (Fluad Quadrivalent) vaccination may seem alarming, but context is critical.

The 11.76% mortality rate among these reports is elevated, but this reflects the severity of the condition itself rather than vaccine causation.

Important Context

•Association, not causation: These reports show Chronic obstructive pulmonary disease occurred after vaccination, not that the vaccine caused it.
•Background rates: Chronic obstructive pulmonary disease may occur naturally at baseline rates in the population, unrelated to vaccination.
•Anyone can report: VAERS accepts reports from anyone — patients, parents, healthcare providers — without requiring medical verification.
•Denominator missing: VAERS counts reports, not rates per dose. Without knowing how many doses were given, raw counts can be misleading. Learn more →

Similarly Ranked Symptoms

Inappropriate schedule of product administration17 reportsElectrocardiogram abnormal17 reportsPallor16 reportsMigraine16 reports

Quick Facts

Reports:17
Deaths:2
Hospitalizations:16
% of Vaccine:0.4%
Rank:#169 of 673

Related Pages

Influenza, Seasonal (Fluad Quadrivalent) OverviewChronic obstructive pulmonary disease (All Vaccines)Why Raw Numbers MisleadTop Symptoms Analysis

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.