Virulence of atypical Toxoplasma gondii strains isolated in French Guiana in a murine model Stéphane Simon, Benoit de Thoisy, Aurélien Mercier, Mathieu Nacher and Magalie Demar Parasite, 26 (2019) 60 Published online: 24 September 2019 DOI: 10.1051/parasite/2019048