Is walking pneumonia contagious for long?

Walking pneumonia: This is not a good medical term and is used to describe patients with pulmonary parenchymal infections that do not require hospitalization. It can be caused by many different microorganisms and more often than not, these are not transmissible from person to person unless in very close contact. An example would be atypical pneumonia due to mycoplasma pneumoniae, often person to person in school.