Exhibit 99.1 QuidelOrtho Reports First Quarter 2026 Financial Results ― LEX Diagnostics Acquisition Expected to Accelerate Growth in Point-of-Care Molecular Diagnostics ― ― Key Product Launches in U.S. and International Markets Expected to Drive Future Growth ― ― Company Updates Full-Year 2026 Financial Guidance ― May 5, 2026 SAN DIEGO, CA May 5, 2026 — QuidelOrtho Corporation (Nasdaq: QDEL) (the "Company" or "QuidelOrtho"), a global leader of innovative in vitro diagnostics, today announced financial resul ...