[THE CURRENT ASPECTS OF DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS OF COMPLICATIONS AFTER BCG VACCINATION].

Whether the diagnosis of BCG complications might be verified by molecular genetic methods, such as polymerase chain reaction (PCR) and sequencing, was studied. PCR could identify Mycobacterium tuberculosis as M. bovis strain BCG and increase the detection rate of M. tuberculosis by 38% as compared with traditional microbiological assays, which provides a means of recommending the method to verify the diagnosis of BCG complications.