Learn about Alexandra Michelle: her birthday, what she did before fame, her family life, fun trivia facts, popularity rankings, and more. Fun facts: before fame, family life, popularity rankings, and more.
Viruses cause such respiratory infections as the common cold (rhinovirus), the flu (influenza), some pneumonias and bronchiolitis (respiratory syncytial virus, or RSV). It can be difficult to determine whether you have a viral or bacterial infection because the symptoms are often similar.
The most common viruses that cause colds are called rhinoviruses. Other virus types include coronavirus, parainfluenza, adenovirus, enterovirus, and respiratory syncytial virus. After the virus enters your child's body, it causes a reaction â the body's immune system begins to react to the foreign virus.