Viral disease
Viral diseases are infections caused by various viruses, which are microscopic infectious agents that replicate inside the living cells of an organism. These diseases can manifest with a wide range of symptoms, from mild, self-limiting conditions like the common cold to severe, life-threatening illnesses such as HIV/AIDS, influenza, or COVID-19. Transmission typically occurs through direct contact, respiratory droplets, contaminated surfaces, or vectors. Diagnosis often involves laboratory testing, and treatment may include antiviral medications, supportive care, or vaccination for prevention.
No Data！
