<prompt> Atypical pneumonia can be caused by the following microbial agents except ?Mycoplasma pneumoniaeLegionella peumophilaHuman corona virusKlebsiella pneumoniae  <response>: Ans. is d i.e., Kleibsella pneumoniae Atypical pneumonia is interstial pneumonia, while Kleibsella causes airspace pneumona. Kleibsella pneumonia presents as a typical air space pneumonia with cough productive of purulent sputum. Causes of Atypical pneumonias Mycoplasma pneumonias Viral pneumonias -4 Influenza, RSV, Adenovirus, Rhinovirus, Rubeola, Varicella, Corona virus Legionella Chlamydia pneumonia Coxiel la burnetti Pneumocystis carinii 