Is pneumonia contagious?
user
Well it depends on what you mean by “contagious”. Pneumonia is caused by bacterial infection, so yes, it can be transmitted to other people if they come into contact with the infected person’s respiratory secretions, or by touching infected objects with bare hands.  It’s possible to pick up the infection by breathing in air that contains the bacteria.
assistant
Is pneumonia contagious?
user
Yeah, there are lots of bacteria that cause pneumonia, so it’s pretty likely that you could catch it from an infected person, but it’s very easy to catch a lot of diseases without even trying!  And most diseases are spread by microbes in the air that people breathe in.
assistant
Is pneumonia contagious?