title: Intrafamilial cases of Yersinia enterocolitica appendicitis.
mesh_terms: D000293:Adolescent; D001064:Appendicitis / Q000209:etiology* / Q000382:microbiology; D001065:Appendix / Q000382:microbiology; D002648:Child; D005243:Feces / Q000382:microbiology; D005260:Female; D006801:Humans; D008297:Male; D015007:Yersinia / Q000302:isolation & purification; D015009:Yersinia Infections / Q000175:diagnosis* / Q000382:microbiology