[Viral infections of the respiratory tract and attacks of asthma].
D001249:Asthma / Q000097:blood / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012141:Respiratory Tract Infections / Q000150:complications*; D012621:Seasons; D012882:Skin Tests; D014777:Virus Diseases / Q000150:complications*