TLR2 and infection: TLR2 also interacts with viral proteins as a TLR2/6 heterodimer, mediating cytokine production during infection with some strains of lymphocytic choriomeningitis virus (LCMV), New World arenaviruses, measles virus, respiratory syncytial virus, and herpes simplex virus (HSV)-1 [24,25,26,27,28].