A nurse is teaching a newly licensed nurse about reportable communicable diseases. Which of the following diseases should the nurse include in the teaching?

A. Group A streptococcus: While group A streptococcus infections are common and can cause conditions such as strep throat, they are not universally required to be reported to public health authorities. Reporting is typically limited to outbreaks or severe complications, so routine cases are not considered reportable. B. Roseola: Roseola is a mild viral illness in children and is generally self-limiting. It is not classified as a reportable disease, and public health authorities do not require notification of isolated cases. It is not included in standard communicable disease reporting education. C. Mumps: Mumps is a reportable communicable disease because it is highly contagious and can lead to outbreaks, particularly in unvaccinated populations. Nurses must report cases to public health authorities to facilitate infection control measures, vaccination campaigns, and contact tracing to prevent further spread. D. Respiratory syncytial virus: RSV is a common respiratory pathogen, especially in infants and older adults, but it is not a nationally reportable disease in most regions. Reporting is generally not required except in outbreak settings in healthcare facilities or long-term care settings.