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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. Tdap (Boostrix)
  4. Blood lactic acid
Tdap (Boostrix)×Blood lactic acid

Blood lactic acid Reports for Tdap (Boostrix)

#1104 most reported symptom for this vaccine

10
Reports
1
Deaths
2
Hospitalizations
10
Mortality Rate
%
20
Hosp. Rate
%

Blood lactic acid and Tdap (Boostrix)

Blood lactic acid has been reported 10 times in association with Tdap (Boostrix) vaccination in VAERS. This represents 0.0% of all 52,846 reports for this vaccine.

Among these reports, 1 mentioned death (10.00%) and 2 involved hospitalization (20.0%).

Blood lactic acid is the #1104 most frequently reported symptom for Tdap (Boostrix) out of 2243 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 10 reports of Blood lactic acid after Tdap (Boostrix) vaccination may seem alarming, but context is critical.

The 10.00% 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 Blood lactic acid occurred after vaccination, not that the vaccine caused it.
•Background rates: Blood lactic acid 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

Lipids10 reportsBladder disorder10 reportsScan with contrast abnormal10 reportsMyopericarditis10 reports

Quick Facts

Reports:10
Deaths:1
Hospitalizations:2
% of Vaccine:0.0%
Rank:#1104 of 2243

Related Pages

Tdap (Boostrix) OverviewBlood lactic acid (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.