A nurse at a public health clinic is caring for a group of clients. Which of the following should the nurse identity as a reportable diagnosis to the CDC?

A. Herpes simplex virus (HSV) type 1: HSV-1 is common and generally causes oral lesions. It is not a reportable disease because it is widespread, rarely life-threatening, and does not require public health tracking for outbreak control. B. Hepatitis A: Hepatitis A is a viral infection that affects the liver and is highly contagious through the fecal-oral route. It is a nationally notifiable disease, and cases must be reported to the CDC to track outbreaks and implement public health measures, such as vaccination and contact tracing. C. Human papillomavirus (HPV): HPV infections are common and typically asymptomatic or cause benign lesions. They are not reportable to the CDC because the infection is widespread, and reporting is not necessary for immediate public health intervention. D. Pediculosis capitis: Head lice infestations are common, especially in children, and are not reportable to the CDC. Public health measures focus on school and household management rather than formal reporting for disease surveillance.