Rhinovirus is a common virus that primarily causes the common cold. It spreads easily through the air when an infected person coughs or sneezes, and it can also be transmitted by touching surfaces contaminated with the virus. Symptoms often include a runny nose, sore throat, and sneezing, making it a familiar nuisance during colder months. While rhinovirus is usually mild and self-limiting, it can lead to more serious respiratory issues in people with weakened immune systems or existing health conditions. To prevent infection, it's important to practice good hygiene, such as washing hands frequently and avoiding close contact with sick individuals.