Pparticipants whose tuberculin test presented an induration e" 10 mm were considered as infected, evaluated within 72 hours, and the booster effect was tested after 1-3 weeks.
Fue considerado infectado el participante cuya prueba de tuberculina presentó endurecimiento = o > 10 mm a ser evaluado dentro de las 48 a 72 horas, habiendo sido considerado el efecto booster posterior a 1 a 3 semanas.
Foi considerado infectado o participante cuja prova tuberculínica apresentou enduração = ou > 10 mm, avaliada 48 a 72 hora, tendo sido testado o efeito booster após 1-3 semanas.