Riboviria is a realm of viruses that primarily contain ribonucleic acid (RNA) as their genetic material. This group includes a wide variety of viruses that can infect animals, plants, and bacteria. Riboviria is classified into several families, such as Orthomyxoviridae, which includes the influenza virus, and Retroviridae, which includes the human immunodeficiency virus (HIV). These viruses are known for their ability to mutate rapidly, which can lead to challenges in treatment and vaccine development. The study of Riboviria is crucial for understanding viral diseases and developing strategies to combat them, especially in the context of emerging infectious diseases.