West Nile virus outbreak in humans and epidemiological surveillance, west Andalusia, Spain, 2016

Author:

López-Ruiz Nuria12,Montaño-Remacha María del Carmen2,Durán-Pla Enric2,Pérez-Ruiz Mercedes345,Navarro-Marí Jose María345,Salamanca-Rivera Celia6,Miranda Blanca7,Oyonarte-Gómez Salvador7,Ruiz-Fernández Josefa8

Affiliation:

1. Department of Preventive Medicine and Public Health, University Hospital Puerta del Mar, Cadiz, Spain

2. Surveillance Department, Andalusian Regional Ministry of Health, Seville, Spain

3. Network Cooperative Research in Tropical Diseases (RICET), Carlos III Institute of Health (ISCIII), Madrid, Spain

4. Institute of Biosanitary Research, Granada, Spain

5. Department of Microbiology, University Hospital Virgen de las Nieves, Granada, Spain

6. Department of Preventive Medicine and Public Health, University Hospital Virgen del Rocío, Seville, Spain

7. Transfusion Tissues and Cells Center, Seville, Spain

8. General Secretary for Public Health and Consumption, Regional Ministry of Health, Andalusia, Spain

Abstract

In Andalusia, Spain, West Nile virus (WNV) surveillance takes place from April to November, during the active vector period. Within this area seroconversion to this virus was evidenced in wild birds in 2004, affecting horses and two humans for the first time in 2010. Since 2010, the virus has been isolated every year in horses, and national and regional surveillance plans have been updated with the epidemiological changes found. WNV is spreading rapidly throughout southern Europe and has caused outbreaks in humans. Here we describe the second WNV outbreak in humans in Andalusia, with three confirmed cases, which occurred between August and September 2016, and the measures carried out to control it. Surveillance during the transmission season is essential to monitor and ensure prompt identification of any outbreaks.

Publisher

European Centre for Disease Control and Prevention (ECDC)

Subject

Virology,Public Health, Environmental and Occupational Health,Epidemiology

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