The technical problem of T-activation.
D000368:Aged; D000941:Antigens / Q000032:analysis*; D001419:Bacteria / Q000201:enzymology; D001769:Blood / Q000382:microbiology*; D006384:Hemagglutination; D006801:Humans; D037102:Lectins; D008297:Male; D008623:Mercaptoethanol; D009439:Neuraminidase / Q000032:analysis
D000941:Antigens; D037102:Lectins; D008623:Mercaptoethanol; D009439:Neuraminidase