[Outbreak of atypic pneumonia].
D004196:Disease Outbreaks; D006801:Humans; D007251:Influenza, Human; D011014:Pneumonia; D011024:Pneumonia, Viral / Q000453:epidemiology* / Q000706:statistics & numerical data*
PNEUMONIA, VIRAL/epidemiology and statistics
Caracteres de un brote de neumonia atipica primitiva.