Human listeriosis in France in 1987.
The surveillance of human listeriosis is based in France on laboratories' reports. From 1983 to 1986 the trend showed a steady increase of the number of cases reported. The highest annual incidence rate was observed in 1986 with 14.7 cases/million population. In 1987 less cases have been reported; about half of the human strains were typed by the National Reference Centre of Listeriosis showing that 62% were 4b, 22% were 1/2a and 13% were 1/2b. Since 1988, the surveillance of listeriosis is computerized using a system of minicomputer terminals (called Minitel) linked via a national telephone network to a large computer. The 70 microbiologists involved in this surveillance must send, on a 24 h basis, data as a soon as they have a new isolate of Listeria monocytogenes in their laboratories. An investigation (typing of the strains, case-control study) is made for each cluster detected.
Goulet
V
V
National Health Laboratory, Paris, France.
Espaze
E
E
Bastide
I
I
Rebiere
I
I
D000328:Adult; D015984:Causality; D016000:Cluster Analysis; D005260:Female; D005602:France / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007226:Infant Mortality; D007231:Infant, Newborn; D008089:Listeria monocytogenes / Q000145:classification; D008088:Listeriosis / Q000453:epidemiology* / Q000401:mortality; D011159:Population Surveillance; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*