Reactivities of polyclonal anti-M. leprae CFP-10 and anti-M. tuberculosis CFP-10 with homologous and heterologous CFP-10 as determined by ELISA. M.l. anti-M.l. CFP-10, M. leprae anti-M. leprae CFP-10; M.l. anti-Mtb CFP-10, M. leprae anti-M. tuberculosis CFP-10; Mtb anti-Mtb CFP-10, M. tuberculosis anti-M. tuberculosis CFP-10; Mtb anti-M.l. CFP-10, M. tuberculosis anti-M. leprae CFP-10; Ab, antibody; O.D. 405 nm, optical density at 405 nm.