<s>[INST] For how long is it contagious? [/INST] It is impossible to accurately predict the exact length of the infective period as it depends on each person and several other factors, such as the extent of the disease, how quickly the medication acts and the individual’s capacity to fight off the illness. Source: Clinic Barcelona. Link: https://www.clinicbarcelona.org/en/assistance/diseases/pneumonia. Field: Lung Disease. Disease: Pneumonia </s>