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• W3093590947 abstract "Abstract The likelihood of a successful host shift of a parasite to a novel host species can be influenced by environmental factors that can act on both the host and parasite. Changes in nutritional resource availability have been shown to alter pathogen susceptibility and the outcome of infection in a range of systems. Here we examined how dietary protein to carbohydrate altered susceptibility in a large cross infection experiment. We infected 27 species of Drosophilidae with an RNA virus on three food types of differing protein to carbohydrate ratios. We then measured how viral load and mortality across species was affected by changes in diet. We found that changes in the protein:carbohydrate in the diet did not alter the outcomes of infection, with strong positive inter-species correlations in both viral load and mortality across diets, suggesting no species by diet interaction. Mortality and viral load were strongly positively correlated, and this association was consistent across diets. This suggests changes in diet may give consistent outcomes across host species, and may not be universally important in determining host susceptibility to pathogens. Twitter summary No role of host diet in susceptibility to a novel viral pathogen across host species Impact Statement A successful host shift of a parasite from one susceptible species to a novel host can be influenced by many ecological factors. Changes in host diet can alter the immune response and outcomes of host–parasite interactions and could potentially alter the outcome of a virus host shift. To investigate, we infected 27 species of Drosophilidae with an RNA virus (DCV) across three food types with differing protein to carbohydrate ratios. We then looked at pathogen loads and survival of infected hosts compared to uninfected controls. Changes in the ratio of protein to carbohydrate did not alter susceptibility to DCV across host species." @default.
• W3093590947 created "2020-10-29" @default.
• W3093590947 creator A5088644016 @default.
• W3093590947 creator A5089064654 @default.
• W3093590947 date "2020-10-21" @default.
• W3093590947 modified "2023-09-23" @default.
• W3093590947 title "Viral susceptibility across host species is largely independent of dietary protein to carbohydrate ratios" @default.
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• W3093590947 hasPublicationYear "2020" @default.
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