American literature is the literature written or produced in the area of the United States and its preceding colonies. For more specific discussions of poetry and theater, see Poetry of the United States and Theater in the United States.illiam Faulkner (1897â1962) is notable for novels like The Sound and the Fury. American drama attained international status only in the 1920s and 1930s, with the works of Eugene O'Neill, who won four Pulitzer Prizes and the Nobel Prize.
1 Several types of bacteria, including Legionella pneumophila, Mycoplasma pneumoniae, and Chlamydophila pneumoniae, cause atypical pneumonia. 2  It is sometimes called  walking pneumonia and is referred to as atypical because its symptoms differ from those of other types of bacterial pneumonia.
Bacterial Pneumonia Causes. 1  Most pneumonia is caused by bacteria or a virus. 2  Pneumonia from any cause can occur at any age, but people in certain age groups are at higher risk for certain types of pneumonia.f you inhale toxic materials, you can injure your lungs and cause chemical pneumonia. Fungus also can cause pneumonia. In certain areas of the United States, specific fungi are well known. Coccidioidomycosis causes a pneumonia called San Joaquin fever or  Valley fever  in the desert regions of California.