Poly(I:C):Kanamycin (1:1) is a compound comprising an equal mixture of synthetic double-stranded RNA (dsRNA), specifically Poly(I:C), a Toll-like receptor 3 (TLR3) agonist, and kanamycin, a positively charged (poly-NH3) antibiotic. The positive charge of kanamycin interacts with the negatively charged Poly(I:C), stabilizing the molecule.