How long am I contagious with walking pneumonia?

How long am I contagious with walking pneumonia?

If you have walking pneumonia caused by Mycoplasma pneumoniae, you can be considered contagious from two to up to four weeks before symptoms appear (called the incubation period). During this time, you will not realize you are contagious and spreading pneumonia. Once the symptoms start, you remain contagious until the symptoms end.