Which item is listed as a Relevant Communicable Disease Agent or Disease (RCDADs)?

• A. Malaria
• B. HIV
• C. Dengue
• D. Tuberculosis

Answer: (B)

RCDADs are diseases or agents that require rapid reporting and a coordinated public-health response because of their potential to spread and cause serious harm. HIV is listed for this category because it is a highly monitored communicable disease with significant ongoing public-health impact, transmitted through blood and certain bodily fluids, and it demands strict reporting, contact tracing, and prescribed infection-control and post-exposure procedures. This combination of high-priority surveillance, prevention, and response needs is why HIV is identified as an RCDAD in this context. Malaria and dengue are vector-borne diseases, and tuberculosis is an airborne infection; while important, they’re typically categorized differently within surveillance lists, so the emphasis here is on HIV as an RCDAD.