[Atypical pneumonias with special reference to prognosis].

The term "atypical pneumonia" was proposed for pneumoniae which ran another course than lobar or bronchopneumoniae. In opposite to the usual bacteriologic pneumoniae in "atypical pneumoniae" there are only seen slight palpatory and auscultatory findings. In spite of high fever there are no tachycardia and no leucocytosis. The diagnosis succeed by X-ray mostly. "Atypical pneumoniae" were caused by mycoplasmae, rickettsiae (Q-fever), chlamydiae, (ornithosis), viruses (influenca, adenoviruses, cytomegalia, measles, varicellae) or protozoa (pneumocystitis carinii). In the following we enter into the particular clinical pictures and their prognoses.