Surveillance Continues in NAVRC Sentinel Sites across Nigeria

The National Arbovirus and Vectors Research Centre (NAVRC)-trained  Disease Vector Surveillance Officers(DVSOs);  have commenced, the yearly cross-sectional survey of Aedes mosquitoes, at the different Aedes sentinel sites established by NAVRC. 

The Sentinel sites were established with the aim to  forecast and curtail possible arboviral outbreaks through  continuous study.   The concept was established by NAVRC in 2018; following re-emergence of Yellow fever outbreaks in Nigeria in late 2017. About 80 middle level manpower pooled from different L.G.As across the states; were trained by NAVRC, in different entomological techniques, to man about thirty sentinel sites were the study is currently being carried out across Nigeria.

  Setting of Ovitraps at Ndeboishiagu, Izzi LGA, Ebonyi State 

Setting of  ovitraps at Onuebonyi, Izzi LGA, Ebonyi State 

2022, surveillance activities started on 20th June and hope to end on the 5th of August, 2022.

it is expected that the following will be established within this period of study:

  • The Specie composition, distribution and diversity of Aedes mosquitoes;
  • the density of the vectors and change in population dynamics;
  • susceptibility of the vectors to  various insecticides;
  • the viral loads of the vectors

Prior to the surveillance activities; the NAVRC Team paid advocacy visits to  relevant authorities to notify them of the ongoing surveillance activities in their different areas.

                                                                        Advocacy Visit to the Ebonyi  State DSNO, Prince Nnachi Anya, 2nd Right and his team members                                                                  Advocacy Visit to the village head, Nwude Nwankwegu, 5th Right, in his home   
 Identification of Mosquito species collected at the sentinel sites

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