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 common cold, also known as rhinopharyngitis, is a type of respiratory tract infection caused by a virus. It is an extremely contagious infection that can be passed on through human contact, making it the most common infectious disease to affect humans. However, it is usually self-limiting and symptoms resolve without serious complications.