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One Health network for the prevention of vector-borne diseases around the Mediterranean and Black Sea regions

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External Quality Assessment

Animal Virology 

The Animal Virology working group has organized an External Quality Assessment (EQA) with the aim to assess the ability of the trained laboratories of the network to detect West Nile virus (WNV) and Rift Valley fever virus (RVFV) antibodies and genetic material in infected animals' samples by ELISA and by PCR techniques.


Shipment of the panels and reagents was done in October 2016 and included:


4 panels

  • Panel A – 10 non-infectious inactivated sera for WNV serological evaluation (-20ºC) 

  • Panel B – 10 non-infectious inactivated samples for WNV genome detection (lyophilized) 

  • Panel C – 10 non-infectious inactivated sera for RVFV serological evaluation (-20ºC) 

  • Panel D – 10 non-infectious inactivated samples for RVFV genome detection (lyophilized) 


Controls

  • 1 positive PCR control (RNA) for WNV 

  • 1 positive PCR control (RNA) for RVFV

  • 1 positive extraction control for WNV (non-infectious inactivated) 

  • 1 positive extraction control for RVFV (non-infectious inactivated) 


Kits & reagents

  • RNA extraction commercial kit 

  • Reagents, primers and TaqMan probes needed for PCR detection of WNV and RVFV 

  • Commercial ELISA kits for detection of WNV and RVFV antibodies. 


Human VIROLOGY 

As a follow-up of the Arbovirus diagnostics workshop organised in Paris for the human virology network in June 2015, two EQA studies were organised with the German company INSTAND in 2016 which included:


  • One panel with 6 non-infectious inactivated and lyophilized samples for West Nile virus genome detection

  • One panel with 4 non-infectious inactivated and lyophilized samples for Chikungunya genome detection


In November 2016, a proficiency test panel organised by WHO and RCPAQAP (Australian company) for the molecular detection of Zika, Chikungunya, dengue and yellow fever virus (last is optional) has also been promoted within the human virology network and most of the laboratories have agreed to participate.


The test results of these EQAs have been restituted and the result analysis will soon be communicated.


Finally, the animal virology work package proposed to participate to their EQA for RVFV genome detection and panels will soon be shipped to the laboratories of the human virology network.


Medical entomology 

The first round of EQAs for identification of mosquitoes has started in November 2016. During the MediLabsecure regional meeting organized in Belgrade, participants from the entomology laboratories of the 11 countries present at the meeting were handed a set of mosquitoes (adults and larvae) to identify at both genus and species levels.



                          


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