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Paaijmans K, Brustollin M, Aranda C, Eritja R, Talavera S, Pagès N, Huijben S. Phenotypic insecticide resistance in arbovirus mosquito vectors in Catalonia and its capital Barcelona (Spain). PLoS One 2019; 14:e0217860. [PMID: 31276554 PMCID: PMC6611561 DOI: 10.1371/journal.pone.0217860] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 05/20/2019] [Indexed: 01/22/2023] Open
Abstract
A range of mosquito species that belong to the Culicidae family are responsible for the worldwide transmission of infectious arboviral diseases such as dengue fever, Zika, West Nile fever and Chikungunya fever. Spain is at risk of arbovirus outbreaks, as various arboviral diseases are frequently introduced and it has established competent vector populations. Autochthonous human cases of West Nile virus have been reported infrequently since 2004, and since October 2018 three autochthonous human case of dengue fever have been confirmed. In response to an outbreak of any arboviral disease, space spraying or fogging will be implemented to control adult mosquito populations. To ensure adulticiding is cost-effective, the insecticide susceptibility status of vectors throughout Catalonia, an autonomous region in north-eastern Spain, was assessed through standardized WHO tube and CDC bottle bioassays. All Culex pipiens populations tested were resistant to at least one of the pyrethroids tested, whereas Aedes albopictus populations were susceptible to all pyrethroids tested. More detailed studies on the Cx. pipiens populations from the Barcelona area (the capital and largest city of Catalonia) revealed resistance to all four classes of public health insecticides available (pyrethroids, carbamates, organophosphates and organochlorides). All Ae. albopictus populations were susceptible to those classes, except for one of the tests performed with pirimiphos-methyl (an organophosphate). Pyrethroids are currently the first line chemical class to be used in space spray operations in response to an outbreak of an arboviral disease. While pyrethroids can be effective in reducing Ae. albopictus populations, this class may not be effective to control Cx. pipiens populations.
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Affiliation(s)
- Krijn Paaijmans
- ISGlobal, Barcelona, Spain
- School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, AZ, United States of America
- The Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, United States of America
| | - Marco Brustollin
- Centre de Recerca en Sanitat Animal (CReSA IRTA), Barcelona, Spain
- The Center for Infectious Disease Dynamics, and the Huck Institutes of The Life Sciences, Millennium Science Complex, Pennsylvania State University, University Park, PA, United States of America
| | - Carles Aranda
- Centre de Recerca en Sanitat Animal (CReSA IRTA), Barcelona, Spain
- Servei de Control de Mosquits, Consell Comarcal del Baix Llobregat, Barcelona, Spain
| | - Roger Eritja
- Servei de Control de Mosquits, Consell Comarcal del Baix Llobregat, Barcelona, Spain
- CREAF, Cerdanyola del Vallès, Spain
| | - Sandra Talavera
- Centre de Recerca en Sanitat Animal (CReSA IRTA), Barcelona, Spain
| | - Nonito Pagès
- Centre de Recerca en Sanitat Animal (CReSA IRTA), Barcelona, Spain
- CIRAD, UMR ASTRE, Petit Bourg, Guadeloupe, France
- ASTRE, CIRAD, INRA, Montpellier University, Montpellier, France
| | - Silvie Huijben
- ISGlobal, Barcelona, Spain
- School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, AZ, United States of America
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