“…Serum samples from five Welsh pony mares ( Equus caballus) , referred as H2, H3, H5, H7, H10 and H11, previously described (Hébert, Guitton, Madeline, Géraud, Carnicer, et al, 2018; Hébert, Guitton, Madeline, Géraud, Zientara, et al, 2018), were used. Briefly, these horses, initially seronegative for Trypanozoon infection of equids, were infected with different infectious doses of T. equiperdum strain Onderstepoort Veterinary Institute (OVI), either intravaginally or intravenously (see Table 1 for details).…”