A nurse in a provider's office is reviewing the laboratory results of a group of clients. The nurse should identify that which of the following sexually transmitted infections is a nationally notifiable infectious disease that should be reported to the state health department?

A. Candidiasis. This is a common fungal infection, often caused by Candida albicans. It is not a reportable disease to public health authorities because it is not typically considered a public health threat. B. Chlamydia. Chlamydia is a nationally notifiable infectious disease due to its high prevalence and potential for serious complications such as infertility. Providers are required to report it to the state health department to aid in public health surveillance and control efforts. C. Herpes simplex virus. While herpes is a common sexually transmitted infection, it is not currently on the national notifiable disease list and is not required to be routinely reported to public health agencies. D. Human papillomavirus (HPV). HPV is widespread and associated with cervical cancer, but routine HPV infection is not reportable. However, certain types of cancer caused by HPV may be included in cancer registries.