An adenovirus infection is caused by any one of more than 40 types of common viruses that can infect the lungs, intestines, eyes or stomach, states the Centers for Disease Control and Prevention (CDC). Adenoviruses often cause respiratory illnesses and produce symptoms similar to the common cold but are not serious.
Adenoviruses can cause conjunctivitis, rash, bladder infection, fever and diarrhea. However, adenoviruses normally do not cause permanent health concerns or death. As of 2015, there are no medications that can effectively treat an adenovirus infection, according to MedicineNet.
Adenoviruses are contracted by touching the mouth, nose or eyes after touching surfaces or objects that are contaminated with the virus. Having close contact with a person who has the virus can also transmit the illness, explains the CDC.