Exhibit 99.1 QuidelOrtho Reports Third Quarter 2025 Financial Results ― Total revenue of $700 million; excluding COVID-19 and Donor Screening, revenue grew mid-single digits, demonstrating solid underlying growth and momentum ― ― Successful completion of debt refinancing, enhancing financial flexibility through improved terms and reduced amortization obligations ― ― Full-year 2025 revenue and adjusted EBITDA guidance ranges narrowed; adjusted diluted EPS updated to reflect debt refinancing ― November 5, 202 ...