- Tumor necrosis factor-alpha promoter polymorphism TNF2 is associated with a stronger delayed-type hypersensitivity reaction in the skin of borderline tuberculoid leprosy patients. Moraes, M.O., Duppre, N.C., Suffys, P.N., Santos, A.R., Almeida, A.S., Nery, J.A., Sampaio, E.P., Sarno, E.N. Immunogenetics (2001)