Institut de veille sanitaire

About: Institut de veille sanitaire is a healthcare organization based out in Saint-Maurice, France. It is known for research contribution in the topics: Population & Public health. The organization has 1055 authors who have published 1547 publications receiving 56945 citations. The organization is also known as: INVS & InVS.

[Food-borne infections: do we need further data collection for public health action and research].

Abstract: The data needed for controlling and preventing food-borne infectious diseases relied so far on surveillance of the main food-borne infections (Salmonella and listeria infections) to follow trends over time and detect outbreak. However, this systematic continuous data collection was not always sensitive enough to timely detect community outbreaks and did not take into account sporadic cases of food-borne infections which represent the majority of patients (such as Campylobacter infection for example). Therefore, the true burden of food-borne infections, including morbidity, mortality and the social and economic cost could not be assessed. As the issue of food-borne infections got more social attention, the need of further epidemiological data has increased including the implementation of large population studies (active surveillance and follow up studies) associated with analytical studies in the United States (Foodnet) and in some European countries (United Kingdom, The Netherlands, Denmark.). Meanwhile surveillance and detection of outbreaks have substantially improved through the use of new typing scheme, particularly those based on molecular techniques. Their routine use, now, allows an early identification of the clonal spread of food-borne bacteria. The application of automatic detection algorithm to surveillance data base has also improved the performance of outbreak detection and changes of trends. Furthermore, food-borne infection surveillance has become European which allows, by pooling of national database, to identify emergence that did not get noticed in any country. To foster the prevention of sporadic cases, the use of analytical epidemiology has become more and more frequent and has improved the knowledge of food vehicles and risk factors. The risk assessment approach has also been applied to the microbial contamination of food to answer to the increasing needs of expertise, particularly at the international level. This approach, however, needs further methodological development and the collection of extra information on the food chain. Last, but not the least, a wider public health research approach must also be considered, particularly on the social perception of food-borne risks and the cost-effectiveness analysis of the prevention measures that are taken.

Toxi-infections alimentaires collectives à Norovirus, liées à la consommation d'huitres de l'étang de Thau, France, décembre 2002

Abstract: En janvier 2003, l'Institut de Veille Sanitaire a ete alerte de l'existence de foyers de gastroenterites vraisemblablement associes a la consommation d'huitres elevees dans l'etang de Thau, au sud de la France. Au cours de la meme periode, une epidemie de plus de 200 cas, associee a des huitres en provenance de l'etang de Thau etait declaree en Italie. Une enquete a ete menee pour determiner la source et le vehicule de ces epidemies. Une analyse descriptive des foyers declares en France, une analyse microbiologique des prelevements de selles et d'huitres, un genotypage des norovirus, ainsi qu'une investigation environnementale de l'etang de Thau ont ete menes. Une etude de cohorte retrospective a egalement ete realisee parmi les personnes ayant participe a des repas familiaux a Paris. D'apres les resultats de l'analyse descriptive, treize foyers familiaux dans quatre departements (69 cas) ont pu etre attribues a la consommation des huitres de Thau. Les huitres, distribuees sur le lieu de travail et puis consommees lors de 14 repas en famille entre le 19 et le 24 decembre ont cause une autre epidemie. Le taux d'attaque etait de 21/36 (58%) chez ceux qui avaient consomme des huitres et de 0/22 chez ceux qui n'en avaient pas consomme (p=0.00002). Des norovirus (genogroupes I et II) ont ete identifies dans les prelevements de selles de quatre foyers d'infection, et dans les huitres de trois foyers d'infection (dont Paris). Les investigations environnementales ont mis en cause les fortes precipitations, le debordement des stations d'epuration, et la contamination fecale de l'etang de Thau au mois de decembre. Les huitres de l'etang de Thau ont ete responsables d'un nombre de foyers de gastroenterites a norovirus au cours de l'hiver 2002 en France et en Italie. Une demande officielle de purification des huitres avant distribution a ete prise au vu des niveaux eleves de E.Coli retrouves dans l'eau de l'etang et dans les coquillages. Cette mesure n'a pas pu etre mise en oeuvre en raison d'un equipement insuffisant. Cette investigation a permis de changer la maniere dont les zones d'elevage des coquillages sont classees en France.

Preliminary analysis of the pandemic H1N1 influenza on Reunion Island (Indian Ocean): surveillance trends (July to mid-September 2009).

Abstract: First infections with the 2009 pandemic H1N1 influenza virus were identified on Reunion Island in July 2009. By the end of July, sustained community transmission of the virus was established. Pandemic H1N1 influenza activity peaked during week 35 (24 to 30 August), five weeks after the beginning of the epidemic and has been declining since week 36. We report preliminary epidemiological characteristics of the pandemic on Reunion Island in 2009 until week 37 ending September 13.

Correction to: Impact of nonoptimal intakes of saturated, polyunsaturated, and trans fat on global burdens of coronary heart disease. [J Am Heart Assoc. (2016) 5, e002891.] Doi:10.1161/JAHA.115.002891.

Abstract: In the article by Wang et al, “Impact of Nonoptimal Intakes of Saturated, Polyunsaturated, and Trans Fat on Global Burdens of Coronary Heart Disease,” which published online January 20, 2016, and appeared in the January 2016 issue of the journal ( J Am Heart Assoc . 2016;5:e002891 doi:10.1161/