“…are the most common protozoan parasites in SACs (Jarvinen, 1999;Schock et al, 2007;Ballweber, 2009;Fowler, 2010;Twomey et al, 2010). Six (presumably host-specific) species have been described, namely, E. ivitaensis, E. punoensis, E. lamae, E. alpacae, E. macusaniensis and E. peruviana (Schrey et al, 1991;Palacios et al, 2006;Rohbeck, 2006;Ballweber, 2009;Fowler, 2010). Each species differs with regard to morphology, pathogenicity, prepatent period and prevalence (Guerrero et al, 1971;Foreyt and Lagerquist, 1992;Whitehead and Anderson, 2006).…”