Final answer:
Hamburgers and tuna burgers should be cooked to a minimum of 155°F for 15 seconds to kill harmful bacteria and prevent foodborne illness.
Step-by-step explanation:
Hamburgers and tuna burgers should be cooked to a minimum internal temperature to ensure safety by killing harmful bacteria and preventing foodborne illness. According to the USDA recommendations and guidelines for safe cooking temperatures, hamburgers and tuna burgers should reach an internal temperature of 155°F for 15 seconds. This temperature will ensure that the food has reached a safe level for consumption, preventing failure of temperature control and the risks associated with foodborne diseases.