Fig. 2From: Vector competence of pre-alpine Culicoides (Diptera: Ceratopogonidae) for bluetongue virus serotypes 1, 4 and 8Proportion (± 95% CI) of blood-fed Culicoides that survived the 8-day incubation period after exposure to blood spiked with BTV-1, BTV-4 or BTV-8 (Table 4) according to collection site. Abbreviations: SP, Swiss Plateau at 650 masl; PI, pre-alpine sites I at 1500 masl; PII, pre-alpine site II at 2030 maslBack to article page