common cold is caused by which virus

The common cold is predominantly caused by rhinoviruses, which are indeed the most frequent culprits behind those pesky cold symptoms like a runny nose, sneezing, and a scratchy throat you’re experiencing. Rhinoviruses account for about 50% of all colds, so it’s pretty likely that’s what you’re dealing with. But you’re right that there are multiple viruses that can cause similar symptoms. Besides rhinoviruses, other viruses like coronaviruses, adenoviruses, and respiratory syncytial virus (RSV) can also be behind the common cold. Parainfluenza viruses are another example, although they often cause more severe illnesses like croup in young children. In truth, knowing exactly which virus is causing your symptoms usually doesn’t change the way we manage a cold, since the treatment is essentially the same: rest, hydration, and symptomatic relief like antihistamines or decongestants if necessary. Most colds are self-limiting, meaning they resolve on their own, typically within a week or two. If symptoms persist beyond this or you develop signs like high fever, shortness of breath, or chest pain, seeking further medical evaluation is important just to rule out more serious conditions like a bacterial infection or something else requiring specific treatment. Otherwise, simple strategies like staying hydrated, getting plenty of rest, and maybe using a humidifier can help manage the symptoms as your body fights off the virus.