TGFB1 and infection: TGFB1 gene polymorphisms, −509 rs1800469, and +10 rs1800470 were associated with susceptibility to infection in a Brazilian cohort [67]; the association with +10 rs1800470 was replicated in cohorts from Peru and Colombia [68]; however, the association with −509 rs1800469 was not replicated in a Brazilian cohort [66] and in a Colombian/Peruvian cohort [68].