Echinococcus metacestode: in search of viability markers Bruno Gottstein, Junhua Wang, Oleg Blagosklonov, Frédéric Grenouillet, Laurence Millon, Dominique A. Vuitton and Norbert Müller Parasite, 21 (2014) 63 Published online: 28 November 2014 DOI: 10.1051/parasite/2014063