text: <unk>  must be differentiated from other diseases that cause atypical pneumonia and febrile illness without localizing signs and extrapulmonary manifestations such as gastroenteritis, hepatitis, meningitis, or encephalitis. The three main diseases to differentiate<unk>  from are Chlamydia pneumoniae, Mycoplasma pneumoniae, and Legionella infection, as they tend to have similar clinical manifestations that can only be differentiated by taking appropriate histories and laboratory investigations. There are other conditions to watch out for which may also present similarly to<unk> .
option_0: Psittacosis differential diagnosis
option_1: Babesiosis differential diagnosis
option_2: Tularemia differential diagnosis
option_3: Roseola differential diagnosis
option_4: Byssinosis differential diagnosis
option_5: Ebola differential diagnosis
option_6: Toxoplasmosis differential diagnosis
option_7: Chickenpox differential diagnosis