Depending on the type of infection, they can cause other illnesses, like gastroenteritis, conjunctivitis, cystitis, and rashes. Overcrowding and stress during an Adenovirus infection can cause acute respiratory disease. Symptoms of adenovirus infection can be similar to the common cold or even pneumonia, croup, and bronchitis. Other symptoms include inflammation of the pharynx, or sore throat, inflammation of nasal membranes, or a congested, runny nose, cough, swollen lymph nodes and illness similar to the flu. The infection can also cause bronchitis and in children under 3 years old, adenovirus can affect the lower respiratory tract, causing bronchiolitis, croup, or viral pneumonia.
Symptoms are red eyes, discharge, tearing, and a feeling that something is in the eye.
Keratoconjunctivitis is a more severe infection that involves both the membranes and cornea. Pharyngoconjunctival fever happens when adenovirus affects the lining of the eye and the respiratory tract. Symptoms are red eyes and a sore throat, sometimes with a fever, rhinitis, and swollen lymph nodes. Gastroenteritis is inflammation of the stomach and the intestines, large and small. Wet diarrhea, vomiting, headache, fever, and stomach cramps accompany this variety.