<s>[INST] Is it possible to have pneumonia without having a fever? [/INST] Yes, while fever is common in pneumonia, it’s possible to have pneumonia with a low fever or no fever. This is more likely if you:

Are older than 65 or younger than 2 (especially newborns and infants).
Have a weakened immune system. Source: Cleveland Clinic. Link: https://my.clevelandclinic.org/health/diseases/4471-pneumonia. Field: Lung Disease. Disease: Pneumonia </s>