In atypical or interstitial pneumonia, the infection is mainly just outside the alveoli in the interstitium.

在非典型肺炎和间质性肺炎中，感染主要发生在间质的肺泡外。

Bronchopneumonia is spread throughout the lungs, atypical or interstitial pneumonia happens interstitium around the alveoli, and lobar pneumonia usually infects an entire lobe of the lung.

支气管肺炎在整个肺内传播，非典型肺炎或间质性肺炎在肺泡周围间隙，大叶性肺炎通常感染整个肺叶。