Sayo Victoria Osinubi sues Sanofi Pasteur Inc. and Sanofi Aventis US LLC in product liability case

Sayo Victoria Osinubi filed a lawsuit against Sanofi Pasteur and Sanofi Aventis US LLC claiming harm from a vaccine they manufactured. The case remains active with no judge assigned and no public docket number available. The complaint centers on product liability and personal injury allegations tied to the vaccine's safety and the defendants' conduct.

The court issued a written opinion on May 10, 2026, signaling movement in the litigation. The details of the opinion have not been publicly disclosed, but it likely addresses procedural or substantive issues raised by the parties. The absence of a judge assignment suggests the case is still in early stages or awaiting reassignment.

No filing date or further docket activity has been made public. The defendants have yet to file a publicly known response or motion. The plaintiff’s claims will hinge on proving that the vaccine caused the alleged injuries and that the manufacturers breached their duty of care or failed to warn.

The case raises questions about vaccine safety liability and the standards for holding pharmaceutical companies accountable in federal court. The outcome could affect similar claims against vaccine makers, depending on how the court handles the issues of causation and product defect.

Watch for the assignment of a judge and any upcoming motions to dismiss or for summary judgment. Those filings will clarify the defendants’ defense strategy and the court’s initial view of the claims’ viability.