ch bacterial pathogen is known as the causative agent of walking pneumonit act one: a. Chlamydophila pneumoniae b. Bordetella pertussis c. Mycoplasma pneumoniae ch bacterial pathogen is known as the causative agent of walking pneumonit act one: a. Chlamydophila pneumoniae b. Bordetella pertussis c. Mycoplasma pneumoniae ch bacterial pathogen is known as the causative agent of walking pneumonit act one: a. Chlamydophila pneumoniae b. Bordetella pertussis c. Mycoplasma pneumoniae ch bacterial pathogen is known as the causative agent of walking pneumonit act one: a. Chlamydophila pneumoniae b. Bordetella pertussis c. Mycoplasma pneumoniae