Chronic inflammation, congestion and hemorrhage are noted. The arrow points to an intranuclear inclusion of adenovirus. Adenoviral pneumonia can occur in the immunocompetent.
Among the causes of viral pneumonia are adenovirus, the herpesviruses, influenza virus, and measles virus. Adenovirus pneumonia accounts for 10-20% of virus pneumonias in children and occurs in about 20% of patients with AIDS or bone marrow transplants. Because of the likelihood of epidemics in the military, vaccination is now given to recruits