is infectious pneumonia contagious
There is no simple answer to this question. Pneumonia can be both, contagious and non-contagious depending upon the cause of pneumonia. Moreover, the contagious causes of pneumonia are not contagious throughout the course of illness, but only during a certain period.A bacterial pneumonia is less likely to be contagious after taking antibiotics for few days.The pneumonias caused by bacteria and viruses are usually contagious, where as those caused by fungus and chemicals is not contagious. Pneumonia can also be caused by chemical injury to the lung tissue.This may occur due to inhalation of toxic fumes or gases (for e.g. in a fire or industrial accident).he pneumonias caused by bacteria and viruses are usually contagious, where as those caused by fungus and chemicals is not contagious. Pneumonia can also be caused by chemical injury to the lung tissue.