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. 2022 Dec 25;12(1):31. doi: 10.3390/pathogens12010031

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Experimental infections of Aedes aegypti from Lao PDR with CHIKV belonging to the ECSA-IOL and Asian lineages. (A) Infection rate, the proportion of blood-fed mosquitoes with an infected body; (B) dissemination rate, the proportion of infected mosquitoes with virus disseminated to the head tissues; (C) transmission rate, the proportion of mosquitoes with a disseminated infection presenting virus in their saliva; and (D) transmission efficiency, the proportion of blood-fed mosquitoes presenting virus in their saliva, were tested at 3-, 7- and 14-days post-infection. The error bars are the 95% confidence intervals of the percentages. Number of positive mosquitoes is indicated above each plot. Statistically significant difference between the two CHIKV strain is indicated by asterisks (* p < 0.05).