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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. Yellow Fever (YF-Vax)
  4. Aspartate aminotransferase increased
Yellow Fever (YF-Vax)×Aspartate aminotransferase increased

Aspartate aminotransferase increased Reports for Yellow Fever (YF-Vax)

#70 most reported symptom for this vaccine

52
Reports
12
Deaths
41
Hospitalizations
23.08
Mortality Rate
%
78.8
Hosp. Rate
%

Aspartate aminotransferase increased and Yellow Fever (YF-Vax)

Aspartate aminotransferase increased has been reported 52 times in association with Yellow Fever (YF-Vax) vaccination in VAERS. This represents 1.0% of all 4,996 reports for this vaccine.

Among these reports, 12 mentioned death (23.08%) and 41 involved hospitalization (78.8%).

Aspartate aminotransferase increased is the #70 most frequently reported symptom for Yellow Fever (YF-Vax) out of 959 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 52 reports of Aspartate aminotransferase increased after Yellow Fever (YF-Vax) vaccination may seem alarming, but context is critical.

The 23.08% 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 Aspartate aminotransferase increased occurred after vaccination, not that the vaccine caused it.
•Background rates: Aspartate aminotransferase increased 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

Tenderness53 reportsExpired product administered53 reportsAbdominal pain upper52 reportsPharyngolaryngeal pain52 reports

Quick Facts

Reports:52
Deaths:12
Hospitalizations:41
% of Vaccine:1.0%
Rank:#70 of 959

Related Pages

Yellow Fever (YF-Vax) OverviewAspartate aminotransferase increased (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.