Clinical characteristics and course of disease of 19 pneumococcal, 11 adenoviral, 15 mycoplasmal and 10 mixed pneumonias, diagnosed in 55 military conscripts, were compared. Controls consisted of 104 conscripts with upper respiratory infections (URI). The triad: productive cough, blood stained sputum, and chest pain aggravated by breathing (pneumococcal score) distinguished pneumococcal and mix...

Round pneumonia is a term referring to round or oval densities on chest x-ray. Round pneumonias have rarely been reported. First recognized in children, round pneumonias were due to Streptococcus pneumoniae or Haemophilus influenzae. Round pneumonias are probably frequently undiagnosed in the adult population, The appearance of such a pneumonia on chest x-ray may be round or oval, the borders m...