A virus invades living, normal cells and uses them to multiply, leading to a viral infection. Someone who has a viral infection may notice various signs and symptoms that might be similar to a bacterial infection. However, mistaking the signs for another illness could interfere with its associated treatment plan. Therefore, one must be mindful of the early warning signs of viral infections, seek a professional opinion, and take the necessary steps to fight viruses. Here are some common viral infections and their associated symptoms: 1. Common cold The common warning signs of a common cold include a runny nose, red eyes, fatigue, a fever, a cough, and a hoarse voice. An individual might get the infection when a virus enters the respiratory system. This might occur when the person touches an infected surface, such as a grab rail or table, or shakes hands with another individual who is ill. This will spread the viral infection if the individual touches their nose, eyes, or mouth. This illness is one of many upper respiratory infections that a person may experience. Other infections in this region with similar signs include epiglottitis, pharyngitis (sore throat), sinusitis, and laryngitis. 2. Viral gastroenteritis Some people might contract an intestinal infection called viral gastroenteritis (stomach flu).