Recent autopsy material. In the recent autopsy material
(formalin fixed and paraffin embedded), only the Mbov primers
produced a specific amplicon. Here, neither mtp-40 primer
pair reacted. The paraffin sample with known M. tuberculosis
infection gave no reaction with either M. bovis or M. tuberculosis
primers. Nevertheless, this material was positive for
IS6110 (and the -actin gene), so that the mere absence of
amplifiable DNA can be ruled out.