Biomaterial Database

[Seroprevalence of Central European tick-borne encephalitis in the Lorraine region]. 1999

H Schuhmacher, and B Hoen, and V Baty, and J Henny, and A Le Faou, and P Canton

Service de Maladies infectieuses et tropicales, CHU de Nancy, Vandoeuvrelès-Nancy, France. h.schum@claranet.fr

BACKGROUND Central European encephalitis, caused by the tick-borne encephalitis virus (TBEV), is exceptional in France. Most cases have been described in Alsace. As 2 cases of tick-borne encephalitis were diagnosed in the Nancy region, a seroepidemiological survey was conducted in the Lorraine region (Meurthe & Moselle, Moselle, Vosges, Meuse) in 1996. METHODS The survey was proposed to approximately 1,000 persons attending preventive medicine clinics. The subjects were asked to fill out a self-administered questionnaire on factors related to tick bite exposure and underwent TBEV serology tests. RESULTS 1,777 subjects participated in the survey. Half of them lived in rural areas, 91% had occasional or regular contact with the forest environment and 21% had experienced tick bites. TBEV serology (IgG) was positive in 19 subjects (1.6%; 95% CI: 0.9%-2.3%); 9 sera were positive on Western blot (0.76). No IgM positive serum was found. Seroprevalence was higher in subjects with a past history of tick bites compared with the others (2.9% vs 1.3%, p = 0.074). CONCLUSIONS The low seroprevalence of TBEV in this survey is not in favor of widespread tick-bite encephalitis virus in the Lorraine general population.

UI	MeSH Term	Description	Entries
D011159	Population Surveillance	Ongoing scrutiny of a population (general population, study population, target population, etc.), generally using methods distinguished by their practicability, uniformity, and frequently their rapidity, rather than by complete accuracy.	Surveillance, Population
D011795	Surveys and Questionnaires	Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions.	Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D004675	Encephalitis, Tick-Borne	Encephalitis caused by neurotropic viruses that are transmitted via the bite of TICKS. In Europe, the diseases are caused by ENCEPHALITIS VIRUSES, TICK-BORNE, which give rise to Russian spring-summer encephalitis, central European encephalitis, louping ill encephalitis, and related disorders. Powassan encephalitis occurs in North America and Russia and is caused by the Powassan virus. ASEPTIC MENINGITIS and rarely encephalitis may complicate COLORADO TICK FEVER which is endemic to mountainous regions of the western United States. (From Joynt, Clinical Neurology, 1996, Ch26, pp14-5)	Far Eastern Russian Encephalitis,Powassan Encephalitis,Central European Encephalitis,Encephalitis, Central European,Encephalitis, European Tick-Borne,Encephalitis, Far Eastern Russian,Encephalitis, Louping Ill,Encephalitis, Russian Spring-Summer,European Tick-Borne Encephalitis,Louping Ill Encephalitis,Powassan Virus Disease,Russian Spring-Summer Encephalitis,Tick-Borne Encephalitis,Disease, Powassan Virus,Encephalitis, European Tick Borne,Encephalitis, Powassan,Encephalitis, Russian Spring Summer,Encephalitis, Tick Borne,European Tick Borne Encephalitis,Powassan Encephalitides,Powassan Virus Diseases,Russian Spring Summer Encephalitis,Spring-Summer Encephalitis, Russian,Tick Borne Encephalitis,Tick-Borne Encephalitis, European,Virus Disease, Powassan,Virus Diseases, Powassan
D005060	Europe	The continent north of AFRICA, west of ASIA and east of the ATLANTIC OCEAN.	Northern Europe,Southern Europe,Western Europe
D005602	France	A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris.	Corsica,Saint Pierre and Miquelon,Miquelon and Saint Pierre,Miquelon and St. Pierre,St. Pierre and Miquelon
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015995	Prevalence	The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given time.	Period Prevalence,Point Prevalence,Period Prevalences,Point Prevalences,Prevalence, Period,Prevalence, Point,Prevalences
D018067	Flaviviridae	A family of RNA viruses, many of which cause disease in humans and domestic animals. There are three genera FLAVIVIRUS; PESTIVIRUS; and HEPACIVIRUS, as well as several unassigned species.
D018177	Flavivirus Infections	Infections with viruses of the genus FLAVIVIRUS, family FLAVIVIRIDAE.	Infections, Flavivirus,Flavivirus Infection,Infection, Flavivirus