What is a likely source for food contamination?

A sick employee sneezing on food is a likely source for food contamination primarily due to the transfer of pathogens. When an ill individual sneezes, respiratory droplets containing harmful bacteria or viruses can contaminate the food. These pathogens can cause foodborne illness when ingested by others. This scenario highlights the importance of maintaining personal hygiene and ensuring that staff who are unwell do not handle food, as this directly prevents the spread of contaminants.

On the other hand, cooking chicken to the required internal temperature is a critical safety measure that kills harmful microorganisms, thereby reducing the risk of foodborne illness rather than contributing to it. Using gloves and tongs to serve ready-to-eat food is also a safe practice that minimizes direct contact and helps reduce contamination. Chewing gum in the break room does not typically pose a direct contamination risk to food being served unless it is not managed properly, but it is less significant compared to the direct transmission that can occur from a sick employee sneezing.