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.
There are over 200 viruses that can cause a cold. The common cold is an upper respiratory infection caused by a virus that creates inflammation in the nose and throat. Symptoms include a runny nose, sore throat, cough, watery eyes, sneezing, congestion, headaches, fatigue, and sometimes a low-grade fever.