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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.

  1. Home
  2. Vaccines
  3. DTaP
  4. Mental retardation severity unspecified
DTaP×Mental retardation severity unspecified

Mental retardation severity unspecified Reports for DTaP

#183 most reported symptom for this vaccine

152
Reports
2
Deaths
55
Hospitalizations
1.32
Mortality Rate
%
36.2
Hosp. Rate
%

Mental retardation severity unspecified and DTaP

Mental retardation severity unspecified has been reported 152 times in association with DTaP vaccination in VAERS. This represents 0.2% of all 66,714 reports for this vaccine.

Among these reports, 2 mentioned death (1.32%) and 55 involved hospitalization (36.2%).

Mental retardation severity unspecified is the #183 most frequently reported symptom for DTaP out of 1943 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 152 reports of Mental retardation severity unspecified after DTaP vaccination may seem alarming, but context is critical.

The mortality rate of 1.32% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.

Important Context

•Association, not causation: These reports show Mental retardation severity unspecified occurred after vaccination, not that the vaccine caused it.
•Background rates: Mental retardation severity unspecified 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

Abscess154 reportsConstipation153 reportsDepressed level of consciousness152 reportsInjection site abscess151 reports

Quick Facts

Reports:152
Deaths:2
Hospitalizations:55
% of Vaccine:0.2%
Rank:#183 of 1943

Related Pages

DTaP OverviewMental retardation severity unspecified (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.