Final answer:
Viral pathogens cause diseases including Epstein-Barr virus (causing infectious mononucleosis and Burkitt lymphoma), cytomegalovirus, and West Nile virus, an arboviral disease. Treatments focus on supportive care, with vaccines available for some but not all viral diseases.
Step-by-step explanation:
Viral pathogens cause a number of diseases including Epstein-Barr virus (infectious mononucleosis and Burkitt lymphoma), cytomegalovirus (serious congenital infections and diseases in immunocompromised adults), and West Nile virus which is a form of arboviral disease.
Viruses are agents that can cause various infectious diseases ranging from mild illnesses like the common cold to severe and often fatal diseases such as Ebola. Treatments for many viral diseases are limited, often focusing on support and symptom management, because viruses can avoid the immune system and develop resistance to antiviral drugs.
Prevention through vaccines is effective for some diseases such as yellow fever, while vector control is critical for arboviruses transmitted by mosquitoes like dengue fever, chikungunya fever, and yellow fever.