TF and infection: Exclusion of the 31 individuals from the MDA treated island did not significantly change the results of the regression analysis; TF (P = 3.83 x 10−6, OR = 13.56 (4.83–45.7)) and new pannus (P = 0.01, OR = 4.04 (1.43–11.96)) remained significantly associated with current Ct infection (data not shown).