Bronchial pneumonia is often seen with cough, cold and mucus. The patient is very likely to eject the infection into the air around. This in turn can carry the infection and spread the same to many others around. As such it can be said that it is contagious

Pneumonia can be contagious. This depends on the agent that caused this infection. Generally, a person is contagious at least for a minimum of 2 weeks. In case of people with lowered immunity, this duration is even longer

Walking pneumonia just refers to a condition where the infection is mild. The cold and cough associated with this infection prove to be contagious too.