Common Cold

The common cold is a contagious virus, usually caused by a rhinovirus, that affects the upper respiratory system. It is one of the most frequent illnesses in the world, especially during the winter. Symptoms are typically a runny nose, a sore throat, and congestion, which can last one to two weeks. Treatment includes rest, fluids, and over-the-counter medications. Careful hygiene and frequent hand-washing can help prevent the spread of the common cold.