In Am J Trop Med Hyg 90: 410–417 by Chusri and others, the first author's last name was spelled incorrectly in the print version of the article. The author's name is Sarunyou Chusri. The journal regrets the error.
In Am J Trop Med Hyg 89: 271 by Bassili and others, the first author's affiliation should be “Stop Tuberculosis Unit, World Health Organization, Regional Office for the Eastern Mediterranean, Cairo, Egypt and Medical Research Institute, Alexandria University.” The journal regrets this omission.