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. Adenovirus is sometimes linked to urinary tract infections, which causes urinary frequency, burning pain, or blood in the urine. All types of adenovirus are transmitted by direct contact, fecal-oral and waterborne transmission.
Some types can establish persistent infections in the tonsils, adenoids, and intestines.
They are more prevalent in the winter, when children are often indoors with other children, as in school etc. Symptoms can develop from 2 days to 2 weeks after a child has been exposed to the virus. Adenoviral infections typically last from a couple of days to a week. Severe respiratory infections can last longer and cause persistent symptoms, like a cough. Pneumonia can last from 2 to 4 weeks.