title: The Seattle virus watch. II. Objectives, study population and its observation, data processing and summary of illnesses.
mesh_terms: D000293:Adolescent; D000328:Adult; D001800:Blood Specimen Collection; D002648:Child; D002675:Child, Preschool; D001330:Electronic Data Processing; D005191:Family Characteristics; D005243:Feces / Q000382:microbiology; D005260:Female; D005334:Fever / Q000453:epidemiology; D005767:Gastrointestinal Diseases / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009305:Nasopharynx / Q000382:microbiology; D011159:Population Surveillance; D012107:Research Design; D012141:Respiratory Tract Infections / Q000453:epidemiology* / Q000382:microbiology; D014777:Virus Diseases / Q000453:epidemiology* / Q000382:microbiology; D014780:Viruses / Q000302:isolation & purification; D014861:Washington