Public Health Ontario is a government agency that provides scientific and technical advice to support public health in the province of Ontario. It focuses on disease prevention, health promotion, and health protection, working to improve the health of communities through research and data analysis. The agency collaborates with local health units, healthcare providers, and other organizations to address public health issues. It also offers resources and training to help professionals implement effective health strategies, ensuring that the population has access to accurate information and services to maintain their health and well-being.