Two studies about transcriptomic and proteomic analyses of T. gondii confirmed that GRA2, GRA3, GRA4, GRA5, GRA6, GRA7, GRA8, GRA14, MIC1, MIC2, MIC12, ROP1, ROP6 and SRS29C, expression levels are elevated in sporozoites at days 4 and 10 of infection relative to day 0 of infection, suggesting an important role in host cell invasion [23, 24]. The gene discussed is MICOS13; the disease is infection.