👉 Mousrhaviruses are a family of viruses that belong to the RNA virus family, including both retroviruses and mumps viruses. These viruses infect cells in the respiratory tract and cause mild symptoms such as coughing, chest pain, or fatigue, commonly known as the common cold. Mousrhaviruses can also be transmitted through saliva, so they are important for understanding how the respiratory system works and how illnesses like influenza and COVID-19 are spread.