Etiology of viral pneumonia in Cairo 1967-1968.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D008875:Middle Aged; D011024:Pneumonia, Viral / Q000209:etiology* / Q000382:microbiology; D012698:Serologic Tests; D014780:Viruses / Q000302:isolation & purification*