Teresa M. Brown1, Kenneth E. Robbins, M Sinniah, T S Saraswathy, V Lee, Lai Seong Hooi, B Vijayamalar, C C Luo, C Y Ou, Jennifer Rapier, Gerald Schochetman, Marcia L. Kalish
1Division of AIDS/STD/TB/Laboratory Research, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.