Lab tests conducted on food handlers typically include screening for bacteria such as Salmonella, E. coli, and S. Auerus.m. These tests help identify potential carriers of harmful microorganisms and ensure that food handlers adhere to hygiene standards. Regular testing is essential to prevent foodborne illnesses and protect public health, ensuring that the food served is safe for consumption. Compliance with these testing protocols is often required by health departments to maintain food safety regulations.