The quantity of adenovirus-DNA decreases in an age- related manner, either from immune elimination or from depletion of latent stores. Persistent or latent infection of other species is still unknown. Acute renal failure due to adenoviruses is caused by disseminated disease or retrograde infection from hemorrhagic cystitis. High persistence of serotype 2 at a young age is mentioned in lots of case reports regarding disseminated diseases of this serotype after stem cell transplantation. Other prevalent serotypes of disseminated diseases are 31 (species A), 11, 34, 35 (species B), 1 and 5. On the other hand, prevalent serotypes of hemorrhagic cystitis.