| [clinical characteristics and epidemiologic study of a listeriosis outbreak in grand canary]. | background and methods: human infections caused by listeria monocytogenes often present as sporadic cases without any epidemiological relationship among them; however they also appear as outbreaks that are usually detected by an increase in the number of cases diagnosed by hospitals of the geographic area. between december 1991 and may 1993, twenty four cases of listeriosis were detected in three hospitals of las palmas de gran canaria; and they were classified as an outbreak. our report describ ... | 1996 | 8991435 |