title: Severe atypical pneumonia outbreak associated with influenza A(H1N1)pdm09 in Egypt, 2013–2014 season.
mesh_terms: D000328:Adult; D003428:Cross Infection / Q000453:epidemiology / Q000821:virology; D004196:Disease Outbreaks; D004534:Egypt / Q000453:epidemiology; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology; D008875:Middle Aged; D011024:Pneumonia, Viral / Q000453:epidemiology* / Q000821:virology; D011159:Population Surveillance