Fig. 4

Principal coordinates analysis (PCoA) applied to the faecal microbiota of lambs infected with Teladorsagia circumcincta, solely (Tc+_18) or following vaccine administration (Vac/Tc+_18), and uninfected controls (Tc−_18) over the 2018 trial. Samples were clustered by experimental group (colour) and infection status (symbol); uninfected samples of Tc+_18 and Vac/Tc+_18 correspond to those collected at 0 days post infection (dpi)