Figure 4
From: Quantifying bluetongue vertical transmission in French cattle from surveillance data
Study area with high level of vector-borne virus circulation from June to December 2016, France. A Map of RT-PCR results in cattle meeting the inclusion criteria (N = 5061), broken down in two sub-areas based on proximity to Allier and Puy-de-Dôme: the NE and SW areas; B histograms of the monthly number of RT-PCR samples in the NE and SW areas from June to December 2016. NE, North–East; SW, South–West.