title: Authors' reply.
authors: Special Preventive Programme, Centre for Health Protection, Department of Health, Kowloon Bay Health Centre, 9 Kai Yan Road, Kowloon Bay, Kowloon, Hong Kong.
authors: Ada W C
authors: AW
authors: Lin
authors: Kenny C W
authors: KC
authors: Chan
authors: W K
authors: WK
authors: Chan
authors: K H
authors: KH
authors: Wong
mesh_terms: D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D006801:Humans; D055985:Latent Tuberculosis / Q000175:diagnosis*; D008297:Male; D014374:Tuberculin Test / Q000379:methods*; D014376:Tuberculosis / Q000517:prevention & control*