In rs15895 (OAS-2; A > G, Figure 2), increased “GG” genotype frequencies were shown to be associated with differential susceptibility to Dengue virus (Controls n = 105; DV positive n = 109) and were also associated with TBE (Controls n = 302; TBE positive n = 142), in an Indian and Russian study, respectively [69,70]. Here, OAS2 is linked to tick-borne encephalitis.