Which confirmed food worker pathogen infection must a manager report to the regulatory authority?

• A. E. coli O157:H7
• B. Norovirus
• C. Salmonella typhi
• D. Listeria monocytogenes

Answer: (C)

Notifiable diseases require health authorities to be told quickly when someone is diagnosed, so they can act to protect the public. Salmonella typhi causes typhoid fever, a serious infection that can spread through contaminated food and water and lead to outbreaks. Because of its potential severity and public health impact, a confirmed case in a food worker triggers mandatory, immediate reporting to the regulatory authority. This makes it the best answer, since the law and safety protocols emphasize prompt notification for typhoid fever to enable swift investigation, containment, and prevention of further exposure. Norovirus is a common illness and is not typically reported on a case-by-case basis to authorities, while E. coli O157:H7 and Listeria monocytogenes are also serious and often reportable, the question highlights the clear mandate for Salmonella typhi reporting.