Atypical pneumonia is caused by all except
Mycoplasma
Adeno virus
Chlamydia
Hemophilus
Haemophilus influenza causes lobar pneumonia .it is one of the frequent cause of fatal pneumonia in the pandemic of influenza in 1918 _1919 where as atypical pneumonia is not as serious as typical pneumonia Ref:anantnarayan and paniker's microbiology 10th edition
Bacteriology