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. 2018 May;23(22):1800246.
doi: 10.2807/1560-7917.ES.2018.23.22.1800246.

Vector competence of Aedes albopictus for the Indian Ocean lineage (IOL) chikungunya viruses of the 2007 and 2017 outbreaks in Italy: a comparison between strains with and without the E1:A226V mutation

Claudia Fortuna  1   2 , Luciano Toma  2   3 , Maria Elena Remoli  1 , Antonello Amendola  1 , Francesco Severini  3 , Daniela Boccolini  3 , Roberto Romi  3 , Giulietta Venturi  1 , Giovanni Rezza  1 , Marco Di Luca  3
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Vector competence of Aedes albopictus for the Indian Ocean lineage (IOL) chikungunya viruses of the 2007 and 2017 outbreaks in Italy: a comparison between strains with and without the E1:A226V mutation

Claudia Fortuna et al. Euro Surveill. 2018 May.

Abstract

We compared the vector competence of an Italian population of Aedes albopictus for two strains of chikungunya virus (CHIKV), with and without E1:A226V mutation, responsible for outbreaks in 2007 in the Emilia Romagna region and 2017 in the Lazio and Calabria regions, respectively. Ae. albopictus showed similar vector competence for both viral strains indicating that E1:A226V mutation is not exclusively responsible for ability of CHIKV to replicate well in this mosquito species.

Keywords: Aedes albopictus; Chikungunya virus; E1:A226V mutation; Italian outbreak; vector competence.

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Conflict of interest statement

Conflict of interest: None declared.

Figures

Figure 1
Figure 1
Mean titres in bodies, legs plus wings and saliva in Italian Aedes albopictus experimentally infected with CHIKVE1:A226V (A) and CHIKVE1 (B) at different days post-exposure (n=10)
Figure 2
Figure 2
Infection(A), dissemination (B), transmission (C) rates of Italian Aedes albopictus experimentally infected with CHIKVE1:A226V and CHIKVE1 by days post-exposure
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