Which of the following pathogens is known to have reportable symptoms?

Norovirus is known for having specific reportable symptoms, making it a key public health concern. This highly contagious virus can lead to outbreaks, particularly in settings such as restaurants, cruise ships, and nursing homes, which is why symptoms associated with it must be reported to health authorities. Symptoms typically include severe vomiting, diarrhea, abdominal pain, and nausea.

In contrast, conditions like the common cold and seasonal flu, while they can cause significant discomfort, are not usually classified with the same level of urgency in reporting as norovirus. Additionally, the term "stomach bug" generally refers to a range of gastrointestinal illnesses and is not a specific pathogen, thus lacking the formal reporting requirements associated with identifiable pathogens like norovirus. Reporting symptoms related to norovirus helps in tracking and controlling outbreaks, ensuring that appropriate public health measures can be implemented.