<s>[INST] Is double pneumonia more dangerous than single pneumonia? [/INST] Well it is conveniently believed that double pneumonia is more difficult. However, this is not completely true as severe single pneumonia can prove to be more dangerous than chronic double pneumonia. Source: Medifee. Link: https://www.medifee.com/faq/pneumonia. Field: Lung Disease. Disease: Pneumonia </s>