Evaluation of current and future strategies for risk-based early warning and detection of known and unknown vector-borne threats

  • Enøe, Claes (Project Participant)

    Project Details


    Club 5 Joint Research 2012
    Over the past 5 years, emerging infections caused by vector-borne pathogens have increasingly become a challange for the EU, with examples such as bluetongue virus, Schmallenberg virus as well as the zoonotic Crimean-Congo Haemorrhagic Fever virus and West Nile virus.
    A common experience is that these emerging situations have become apparent first at the stage where they are clinically manifested in livestock and wild fauna, at a fairly late stage after the initial introduction. An improved ability to detect abberations, such as changes in pathogen or vector levels, indicative of a threat at an earlier stage or detection of emerging pathogens in vectors before clinically manifest in the livestock host, would give more time to assess the situation and to prepare for any necessary interventions or developments.
    In the light of an emerging threat, basic epidemiological data on prevalence of the pathogen in hosts and vectors as well as evidence of exposure are usually needed with short notice, together with informatin on vector densities and frequence of interactions between vector and host populatiaons. However, experiences have shown that surveillance data for the assessment of vector-borne threats is typically scarce or unavailable at the time when they are first needed.
    Consequently, there is a substantial need for a generic and systematic approach to surveillance of vector-borne disease, including the harmonisation of underlaying risk assessment frameworks as well as relevant indicators across diseases and countries.
    The focus of this project is the early detection of emerging vector-borne disease threats, including both previoyusly defined and undefined diseases. The project will review available approaches and how surveillance for vector-borne disease is currently carried out in CoVetLab institute countries and provide recommendations for a future systematic approach to risk-based early warning surveillance and investigations of emerging vector-borne disease, including the identification and prioritisation of joint developmental needs within CoVetLab institutes. There are necessary steps in setting up a more long-term, sustainable surveillance of vector-borne disease and for a better preparedness for future threats in this area which will facilitate prevention, earlier detection and effective control of these conditions.
    Effective start/end date01/12/201231/12/2013