Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Atypical pneumoniaUpdated: 2017-06-13OverviewAtypical pneumonia is a lung infection (pneumonia) with atypical symptoms.SymptomsA slow onset, cough, headache, and low-grade fever are common.TreatmentsTreatments include antibiotics. © 1998-2024 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use