Vaccine compensation: The Supreme Court of Cassation clarifies the causal link
The Supreme Court of Cassation, in ruling no. 10741 of April 23, 2026, has clarified the evidentiary standards for vaccine compensation under Law 210/1992. The Court established that the causal link between the vaccine and the onset of a permanent pathology does not require absolute scientific certainty, but rather satisfies the civil standard of "more likely than not." By emphasizing temporal proximity and the absence of alternative causes (differential diagnosis), the ruling protects the rights of injured parties even in the absence of broad epidemiological consensus. This decision provides a vital precedent, shifting the focus from abstract statistics to individual clinical history, thereby ensuring effective protection of health rights within the framework of public vaccination programs.
Vaccine compensation: The Supreme Court of Cassation clarifies the causal link
With the recent ruling no. 10741 of April 23, 2026, the Supreme Court of Cassation has once again clarified the criteria for recognizing vaccine compensation, focusing on the evidence of a causal link between administration and pathology. The decision provides significant guidance regarding the burden of proof required to access benefits under Law 210/1992, consolidating a jurisprudence based on scientific probability rather than absolute certainty.
The regulatory framework and the right to compensation
The system of protections provided by our legal system for damages resulting from irreversible complications due to vaccinations (whether mandatory or strongly recommended) rests on Law no. 210 of 1992. This legislation is not intended to provide compensation for damages in the strict sense—which would be based on a tortious act—but rather serves as a social assistance and solidarity measure.
The objective is to provide a remedy to individuals who, while fulfilling a duty of solidarity toward the community or following the recommendations of health authorities, suffer a prejudice to their psycho-physical integrity. However, access to such vaccine compensation remains subject to the rigorous demonstration that the complained-of pathology is a direct consequence of the prophylaxis performed.
The legal issue: The causal link between vaccine and pathology
The core of the dispute examined by the Labor Section of the Court concerns the establishment of the etiological link. In civil and social security matters, unlike criminal law, the causal link does not require "certainty beyond a reasonable doubt" but is based on the principle of being "more likely than not."
The criterion of scientific probability
The Supreme Court emphasizes that, in the absence of scientific literature affirming an absolute incompatibility between a vaccine and a specific pathology, the judge must evaluate whether, in the specific case, there are "serious, precise, and concordant" circumstantial elements. The temporal proximity between the administration and the onset of the first symptoms, together with the absence of other pre-existing or concomitant risk factors (the so-called "differential diagnosis"), constitutes a fundamental pillar of the evidentiary reasoning.
The decision of the Supreme Court of Cassation no. 10741/2026
In ruling no. 10741/2026, the Justices upheld the appeal of an injured party, overturning a lower court decision that had denied compensation due to a lack of universal scientific evidence. The ratio decidendi lies in the fact that a court-appointed technical expert cannot limit themselves to noting the absence of definitive large-scale epidemiological studies.
Instead, the judge must perform a holistic analysis: if the pathology emerged in a previously healthy individual within a timeframe compatible with an immune response, and there are no other plausible explanations, the causal link must be considered established. The Court reiterated that denying relief simply because science has not yet cataloged every single adverse reaction would undermine the spirit of Law 210/1992.
Operational and practical implications
This ruling strengthens the position of claimants by partially simplifying an evidentiary burden that is often prohibitive. For businesses and professionals operating in the healthcare sector, as well as for families, the judgment clarifies that:
- Medical documentation must be timely and detailed from the very first manifestations of the pathology.
- Forensic medical reports must focus on the individual clinical history of the injured party rather than on general statistical data.
- The legal causal link maintains its own autonomy from the purely clinical causal link.
The decision confirms a jurisprudential approach sensitive to the balance between the public interest in vaccination and the individual right to health, ensuring that the sacrifice of an individual in the name of the community always receives adequate economic recognition.
