[Preliminary observation on tuberculous allergy and cross reaction with atypical mycobacteria PPD (purified protein derivative) in babies immunized by BCG].
In order to know the cross reaction between BCG and Atypical Mycobacteria (AM) antigenicity, 1150 babies immunized by BCG, aged 12-24 week, undertook a bilateral arm control test with H-PPD. type 11 AM-PPD and BCG-PPD. The results showed that all the AM-PPD tested can bring about a delayed allergy in these babies. but the total positive rate (42.87%) and mean reactive diameter (3.87 mm) were the lowest and smallest among the above mentioned three types of PPD. The BCG-PPD derived allergy has highest positive rate and largest reactive diameter, but there is no statistical difference when compared to those of allergy caused by H-PPD.
Xu
D A
DA
Hangzhou Tuberculosis Control Clinic, Zhejiang.
D001500:BCG Vaccine; D003429:Cross Reactions; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology; D007223:Infant; D009170:Nontuberculous Mycobacteria / Q000276:immunology; D014373:Tuberculin / Q000276:immunology; D014611:Vaccination
D001500:BCG Vaccine; D014373:Tuberculin