[Respiratory viruses in infants with severe symptoms].
D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000382:microbiology*; D008297:Male; D009305:Nasopharynx / Q000382:microbiology*; D012141:Respiratory Tract Infections / Q000382:microbiology*; D014780:Viruses / Q000302:isolation & purification*
Virus respiratorios en niños pequeños con sintomatología grave.