Figure 1
From: Quantifying bluetongue vertical transmission in French cattle from surveillance data
Pre-export BTV RT-PCR results in cattle tested in France in 2016. Pre-export BTV RT-PCR results: A from January 2016 to May 2016 (N = 78 074); B from June 2016 to December 2016 (N = 151 691). Positive and negative results are shown in lighter colors in Allier and Puy-de-Dôme, where BTV-8 substantially circulated in 2015. C Monthly distribution of RT-PCR test results in 2016, excluding Allier and Puy-de-Dôme.