Tuberculin PPD RT23: has it lost some of its potency?
PPD RT23 is a tuberculin that is used worldwide. Korea has been using 1TU RT23 for its nationwide tuberculosis prevalence surveys at five-yearly intervals since 1965, and found a drop in its potency after the 1975 survey. This finding draws attention to the interpretation of tuberculin survey data observed with RT23 at different time periods.
Kim
S J
SJ
Korean Institute of Tuberculosis, Korean National Tuberculosis Association, Seoul.
Hong
Y P
YP
Bai
G H
GH
Lee
E K
EK
Lew
W J
WJ
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D003625:Data Collection; D005260:Female; D006801:Humans; D007723:Korea / Q000453:epidemiology; D008297:Male; D015995:Prevalence; D012680:Sensitivity and Specificity; D014374:Tuberculin Test / Q000592:standards*; D014376:Tuberculosis / Q000175:diagnosis* / Q000453:epidemiology