High incidence of anaphylactic reactions to cefaclor.
D000328:Adult; D000368:Aged; D000707:Anaphylaxis / Q000139:chemically induced*; D002433:Cefaclor / Q000009:adverse effects*; D002506:Cephalexin / Q000031:analogs & derivatives*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012882:Skin Tests
D002433:Cefaclor; D002506:Cephalexin