ServicenavigationHauptnavigationTrailKarteikarten


Research unit
FSVO
Project number
1.12.14
Project title
EMIDA VICE Vector-borne Infections: risk based and cost effective surveillance systems

Texts for this project

 GermanFrenchItalianEnglish
Key words
Anzeigen
-
-
Anzeigen
Short description
Anzeigen
-
-
Anzeigen
Project aims
-
-
-
Anzeigen
Publications / Results
Anzeigen
-
-
Anzeigen
URL-addresses
Anzeigen
-
-
-

Inserted texts


CategoryText
Key words
(German)

Vektorübertragene Krankheiten, Monitoring, Surveillance, Kosteneffizienz, Risikomanagement, Frühwarnsystem

Key words
(English)

Vector-borne diseases, montitoring, surveillance, cost-effectiveness, risk management, early warning

Short description
(German)

Das übergeordnete Projektziel besteht darin, einen Rahmen für die Überwachung von vektorübertragenen Tierseuchen zu entwickeln. Das Projekt soll auch der Früherkennung dienen, in dem ein aus der Perspektive der nationalen Risikomanager  transparentes, einfach anzuwendendes Warnsystem entwickelt wird. Die aktive Überwachung sollte auf der sich wandelnden Risikosituation angepasst sein. In Abhängigkeit von Risikosituation und Überwachungszweck (Früherkennung, Prävalenzschätzung endemische Situation, Nachweis der Freiheit) soll für wichtige vektorübertragene Tierseuchen die optimale Überwachungsstrategie entwickelt werden.

Das Projekt soll auch einen Überblick über die wichtigsten Schritte für die Evaluation eines Überwachungssystems für vektorübertragene Krankheiten geben. Hierzu müssen Vektor-spezifische Faktoren wie Klimaschwankungen, Saisonalität und Vektorökologie berücksichtigt werden, aber auch Faktoren wie Dichte des Viehbestands und Importrisiken. Das zu entwickelnde Frühwarnsystem soll diese Faktoren berücksichtigen. Für Situationen mit erhöhtem Risiko sollen gezielte aktive Überwachungsstrategien empfohlen werden können.

Das entwickelte Überwachungssystem soll durch Publikation in wissenschaftlichen Zeitschriften über die im Konsortium vertretenen Länder hinaus bekannt gemacht werden. Das Projekt ist direkt relevant für das übergeordnete Ziel von EMIDA, indem auf wichtige Krankheiten von Nutztieren fokussierte Forschung auf Europäischer Ebene koordiniert wird. Das Projekt nutzt länderübergreifende Kenntnisse und Expertise und bearbeitet eine Fragestellung, welche für die meisten Europäischen Länder relevant ist.

Short description
(English)

The overall project aim is to build a framework for surveillance of vector borne diseases, including a selection of methods which can be applied. We aim to develop a warning system that is transparent and easy to apply from a national management point of view. This warning system should direct an active surveillance system that targets the discerned risk situation. The framework should also advise on the optimal surveillance, for this specific situation.

The framework gives an overview of the essential steps required for evaluating surveillance systems for vector-borne infections. This means that it needs to take account of vector specific issues like climate variation, seasonality and vector ecology, but also needs to take account of livestock (host) densities and import risks. An early warning system looking for increased risk will be developed that takes account of the above. In increased risk situations active targeted surveillance can be advised, specifically focussing on the risk situation at hand.

The framework will be made available to others by publication in scientific journals for broader use than within the developing teams only.?This project is directly relevant to the overall aim of EMIDA in co-ordinating focused research on major infectious diseases of production animals at a European level. The project draws on a skill set that extends beyond national boundaries, and addresses a problem that is relevant for most European countries.

Project aims
(English)

The overall aim is to develop a fully functional framework for a dynamic risk-based surveillance for VBD according to EMIDAs specific topic A5. The potential risk of outbreaks of VBD and consequently the spread within the population at risk will be continuously estimated. This will permit 1) active surveillance to be focused on specific periods and areas of elevated risk and 2) active surveillance activities to be fitted to the available resources at EU and national level.

The proposed surveillance system will be based on computer models scanning and interpreting risk parameters already collected for other purposes (weather data, environmental data, import data, syndromes) and costs may therefore be very low. Only during time periods and in areas of elevated risk will costly active surveillance activities gradually be suggested based on cost- effectiveness estimates and the desired sensitivity.

This framework for continuous risk based surveillance will be based on three independent pillars: (1) risk of introduction, (2) potential for spread if introduced and (3) syndrome surveillance. The sensitivity of the system will be evaluated with scenario trees. The surveillance system will be built on present knowledge of disease biology and vector ecology. The surveillance system will be modular allowing for easy and continuous updating of the underlying models whenever new or more precise information becomes available.

Using selected VBD we will demonstrate how risk and hence the need for active surveillance can be communicated as dynamic maps of risk displayed on the internet at a weekly resolution. We will also demonstrate the surveillance system on historic data for a 30-year period to determine the average risk and hence cost of surveillance. This will assist decision makers at national and EU level to estimate long-term expenses for surveillance in various regions. Furthermore we will make spatially specific 50-year prognoses based on existing climate change predictions.

Publications / Results
(German)
Related documents
Publications / Results
(English)

Rebekka Nafzger Bigler, Simon Rüegg, Katharina D.C. Stärk, Gertraud Schüpbach-Regula, Yves Van der Stede, Sarah Welby

Assessment of the effectiveness of bluetongue surveillance in Belgium and Switzerland

Rüegg, S.R.; Welby, S.; Yassin, H.; Van der Stede, Y.; Nafzger, R.; Saatkamp, H.; Schüpbach-Regula, G.; Stärk, K. D.C. (2018) Optimising cost-effectiveness of freedom from disease surveillance - Bluetongue Virus Serotype 8 as an example

Related documents
URL-addresses
(German)