“…Among the 7 genotypes, HEV-1 and HEV-2 can only infect people and the infection route is mainly associated with drinking water contaminated by HEV (Purcell and Emerson, 2008;Pérez-Gracia et al, 2014;King et al, 2018). In comparison, HEV-3 and HEV-4, recognised as zoonotic pathogens (Meng, 2010a(Meng, , 2011, not only infect people but can also infect many animal species, such as pigs, rabbits and deer, and the main infection route may be related with HEV-contaminated animal meats or internal organs (Tei et al, 2003;Yazaki et al, 2003;Zhao et al, 2009;Meng, 2010b;Pavio et al, 2015;Li et al, 2017). Wild boars have become an important reservoir for HEV-5 and HEV-6; HEV-7 has been isolated from camels, and has the potential to infect people (Woo et al, 2014;Lee et al, 2016;Sridhar et al, 2017).…”