The risk of infection after stroke was not associated with the serum levels of MBL at day 0 (p = 0.47) or at day 90 (p = 0.95), the levels of MASP-2 at day 0 (p = 0.07) or at day 90 (p = 0.14), the MBL genotype (OR = 1.27, 95% CI 0.42–3.84, p = 0.67), or the MASP2 genotype (OR = 0.68, 95% CI 0.14–3.25, p = 0.63). The gene discussed is MASP2; the disease is stroke disorder.