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Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

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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.

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  3. Vaccine Not Specified
  4. Carbon dioxide decreased
Vaccine Not Specified×Carbon dioxide decreased

Carbon dioxide decreased Reports for Vaccine Not Specified

#544 most reported symptom for this vaccine

27
Reports
2
Deaths
20
Hospitalizations
7.41
Mortality Rate
%
74.1
Hosp. Rate
%

Carbon dioxide decreased and Vaccine Not Specified

Carbon dioxide decreased has been reported 27 times in association with Vaccine Not Specified vaccination in VAERS. This represents 0.1% of all 29,669 reports for this vaccine.

Among these reports, 2 mentioned death (7.41%) and 20 involved hospitalization (74.1%).

Carbon dioxide decreased is the #544 most frequently reported symptom for Vaccine Not Specified out of 2482 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 27 reports of Carbon dioxide decreased after Vaccine Not Specified vaccination may seem alarming, but context is critical.

The 7.41% 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 Carbon dioxide decreased occurred after vaccination, not that the vaccine caused it.
•Background rates: Carbon dioxide decreased 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

Vaccination site reaction27 reportsCardiac monitoring27 reportsCataract27 reportsAcute myocardial infarction27 reports

Quick Facts

Reports:27
Deaths:2
Hospitalizations:20
% of Vaccine:0.1%
Rank:#544 of 2482

Related Pages

Vaccine Not Specified OverviewCarbon dioxide decreased (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.