👉 Vinavirales are a family of viruses that cause yellow fever, a deadly disease caused by the flavivirus genus. They are classified into four genera based on their structural characteristics: Flaviviridae, Hematoviridae, Reoviridae, and Poxviridae. These viruses infect the liver, spleen, and lymph nodes, leading to symptoms such as fever, headache, muscle aches, and joint pain.